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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.

A181635 Expansion of 36*x^2*(1+36*x^2-6*x) / ((36*x^2+6*x+1)*(1-6*x)^2).

Table of values

n a(n)
1 0
2 36
3 0
4 1296
5 15552
6 46656
7 559872
8 5038848
9 20155392
10 181398528
11 1451188224
12 6530347008
13 52242776064
14 391820820480
15 1880739938304
16 14105549537280
17 101559956668416
18 507799783342080
19 3656158440062976
20 25593109080440832
21 131621703842267136
22 921351926895869952
23 6317841784428822528
24 33168669368251318272
25 227442304239437611008

List of values

[0, 36, 0, 1296, 15552, 46656, 559872, 5038848, 20155392, 181398528, 1451188224, 6530347008, 52242776064, 391820820480, 1880739938304, 14105549537280, 101559956668416, 507799783342080, 3656158440062976, 25593109080440832, 131621703842267136, 921351926895869952, 6317841784428822528, 33168669368251318272, 227442304239437611008]

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

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