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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.

A349517 G.f. A(x) satisfies: A(x) = (1 + 4 * x * A(x)^3) / (1 - x).

Table of values

n a(n)
0 1
1 5
2 65
3 1145
4 23185
5 509005
6 11782465
7 283138545
8 6996125985
9 176633573205
10 4536739406465
11 118166489152745
12 3113854691067185
13 82864654201672605
14 2223776891616904065
15 60113561634017675745
16 1635364503704652830785
17 44739382956328846263205
18 1230059816693141938275265

List of values

[1, 5, 65, 1145, 23185, 509005, 11782465, 283138545, 6996125985, 176633573205, 4536739406465, 118166489152745, 3113854691067185, 82864654201672605, 2223776891616904065, 60113561634017675745, 1635364503704652830785, 44739382956328846263205, 1230059816693141938275265]

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

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