A119820 - cp's OEIS frontend

A119820 Coefficients of x^n in the n-th iteration of x*(1+x)^2 for n>=1.

n	a(n)
1	1
2	4
3	27
4	300
5	4790
6	101010
7	2660028
8	84191772
9	3115739358
10	132074618544
11	6311492388432
12	335744715016854
13	19678501474466211
14	1260060524755139120
15	87519840721085385096
16	6553840567691077634748
17	526360263009035464610574

[1, 4, 27, 300, 4790, 101010, 2660028, 84191772, 3115739358, 132074618544, 6311492388432, 335744715016854, 19678501474466211, 1260060524755139120, 87519840721085385096, 6553840567691077634748, 526360263009035464610574]

cp's OEIS Frontend

A119820 Coefficients of x^n in the n-th iteration of x*(1+x)^2 for n>=1.

Table of values

List of values