Jump to content
Science Forums

Number sequence


anto

Recommended Posts

Using about the algorithm Pyro describes... Still, I don’t think this is what the target sequences inventor intends – it doesn’t quite seem to satisfy the “any 5th grader could do it” criterion....

I agree. I've given up on that approach.

Link to comment
Share on other sites

1
1 2
3 2 3
3 4 3 4
5 4 5 4 5
5 6 5 6 5 6

1  1  2  3  2  3  3  4  3  4  5  4  5  4  5  
0  2  4  6  8 10 12 14 16 18 20 22 24 26 28

p=# of primes used in sum s, x=product of the primes                        
p  s          | x       ->1,2,4,8,15,30,50,100,98,375..
1  0 1(not p.)|         1    
1  2=2        | 2      =2
2  4=2+2      | 2*2    =4      
3  6=2+2+2    | 2*2*2  =8
2  8=5+3      | 5*3    =15 
3 10=5+3+2    | 5*3*2  =30 
3 12=5+5+2    | 5*5*2  =50
4 14=5+5+2+2  | 5*5*2*2=100
3 16=11+3+2   | 11*3*2 =66
            or
  16=7+7+2      7*7*2  =98 <-? 
4 18=11+3+2+2 | 11*3*2*2=132
            or
    7+7+2+2    7*7*2*2=196 
           or           
    7+5+3+3    7*5*3*3=315 
           or
    5+5+5+3    5*5*5*3=375 <-??
5 20=11+3+2+2+2   
.
.
.
ack..
------------------------
14 (4)
7 3 2 2  84
5 5 2 2 100<- 100>84>45   
5 3 3 3  45

12 (3)
7 3 2  42
5 5 2  50<- 50>42

Link to comment
Share on other sites

  • 7 years later...

pattern of triangle numbers? ((n+1)n/2):
1 3 6 *** 28 * 45 ** 78 *** 136
153 171 190 *** 276 * 325 ** 406 *** 528
561 595 630 *** 780 * 861 ** 990 *** 1176
1225 1275 1326 *** 1540 * 1653 ** 1830 *** 2080
(###*** #*#**#***# ?)

social media is based in binary:
tri# 128 64 32 16 8 4 2 1
1 0 0 0 0 0 0 0 1 64
3 0 0 0 0 0 0 1 1 32
6 0 0 0 0 0 1 1 0 16
28 0 0 0 1 1 1 0 0 8
45 0 0 1 0 1 1 0 1 4
78 0 1 0 0 1 1 1 0 2
136 1 0 0 0 1 0 0 0 1
------------------------------------------------------------
1 2 4 8 15 30 50 100

maybe this is next:
tri# 512 256 128 64 32 16 8 4 2 1
153 0 0 1 0 0 1 1 0 0 1 64
171 0 0 1 0 1 0 1 0 1 1 32
190 0 0 1 0 1 1 1 1 1 0 16
276 0 1 0 0 0 1 0 1 0 0 8
325 0 1 0 1 0 0 0 1 0 1 4
406 0 1 1 0 0 1 0 1 1 0 2
528 1 0 0 0 0 1 0 0 0 0 1
------------------------------------------------------------------------
1 14 114 4 48 91 112 30 50 100
(1<150)


1 2 4 8 15 30 50 100
1 14 114 4 48 91 112 30 50 100
1 126 14 3 54 80 119 15 30 50 100
1 126 14 18 96 100 55 36 112 30 50 100
...

1,2,4,8,15,30,50,100, 1,14,114,4,48,91,112,30,100, 1,126,14,3,54,80,119,15,....
Edited by max4236
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...