A132853 - cp's OEIS frontend

A132853 Number of sequences {c(i), i=0..n} that form the initial terms of a self-convolution cube of an integer sequence such that 0 < c(n) <= 3*c(n-1) for n>0 with c(0)=1.

n	a(n)
0	1
1	1
2	3
3	18
4	180
5	4347
6	245511
7	33731424
8	11850958449
9	10823718435525
10	26127739209077469
11	169071160476526474689
12	2962647736390311022542681
13	141814999458311839862777779311
14	18682218330844513414826192858258922

[1, 1, 3, 18, 180, 4347, 245511, 33731424, 11850958449, 10823718435525, 26127739209077469, 169071160476526474689, 2962647736390311022542681, 141814999458311839862777779311, 18682218330844513414826192858258922]

cp's OEIS Frontend

A132853 Number of sequences {c(i), i=0..n} that form the initial terms of a self-convolution cube of an integer sequence such that 0 < c(n) <= 3*c(n-1) for n>0 with c(0)=1.

Table of values

List of values