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.

A262015 a(n) = [x^n] (1-x)^(4*n+1) * Sum_{k>=0} binomial(n+k-1,k)^4 * x^k.

Table of values

n a(n)
0 1
1 11
2 603
3 49682
4 4961755
5 554083761
6 66555527346
7 8415759917268
8 1105492743188955
9 149552158117961225
10 20710288432292240353
11 2923132560874617706758
12 419153950726771517250994
13 60909593781491823719018822
14 8952489587089165075007703060
15 1328855554150146863702291235432
16 198950469430034588049648664728027
17 30012345078088728771497844274527081

List of values

[1, 11, 603, 49682, 4961755, 554083761, 66555527346, 8415759917268, 1105492743188955, 149552158117961225, 20710288432292240353, 2923132560874617706758, 419153950726771517250994, 60909593781491823719018822, 8952489587089165075007703060, 1328855554150146863702291235432, 198950469430034588049648664728027, 30012345078088728771497844274527081]