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.

A370271 Coefficient of x^n in the expansion of 1/( (1-x)^3 * (1-x^2)^3 )^n.

Table of values

n a(n)
0 1
1 3
2 27
3 246
4 2379
5 23628
6 239058
7 2450052
8 25351755
9 264270765
10 2771024652
11 29194911342
12 308813298690
13 3277454178144
14 34883317836240
15 372195546176496
16 3979793738688075
17 42635773396647054
18 457529396858568837
19 4917191231017846902
20 52917857164300253004

List of values

[1, 3, 27, 246, 2379, 23628, 239058, 2450052, 25351755, 264270765, 2771024652, 29194911342, 308813298690, 3277454178144, 34883317836240, 372195546176496, 3979793738688075, 42635773396647054, 457529396858568837, 4917191231017846902, 52917857164300253004]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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