cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A366115 Expansion of (1/x) * Series_Reversion( x*(1+x+x^2)/(1+x)^5 ).

Table of values

n a(n)
0 1
1 4
2 21
3 125
4 801
5 5390
6 37558
7 268656
8 1961355
9 14555266
10 109472688
11 832625469
12 6393072182
13 49488174700
14 385795571040
15 3026190911853
16 23867383581009
17 189156323865632
18 1505649098866535
19 12031665674394905
20 96486323017581420
21 776255276240140980

List of values

[1, 4, 21, 125, 801, 5390, 37558, 268656, 1961355, 14555266, 109472688, 832625469, 6393072182, 49488174700, 385795571040, 3026190911853, 23867383581009, 189156323865632, 1505649098866535, 12031665674394905, 96486323017581420, 776255276240140980]