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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.

A363559 Expansion of g.f. A(x) = Sum_{n=-oo..+oo} x^n * (3 + x^n)^(2*n).

Table of values

n a(n)
0 1
1 10
2 81
3 757
4 6561
5 59454
6 531496
7 4788072
8 43046721
9 387480753
10 3486784492
11 31381709148
12 282429556893
13 2541872737062
14 22876792457796
15 205891204134565
16 1853020188851841
17 16677182431460826
18 150094635300957591
19 1350851725033981380
20 12157665459056934471

List of values

[1, 10, 81, 757, 6561, 59454, 531496, 4788072, 43046721, 387480753, 3486784492, 31381709148, 282429556893, 2541872737062, 22876792457796, 205891204134565, 1853020188851841, 16677182431460826, 150094635300957591, 1350851725033981380, 12157665459056934471]

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

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