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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.

A351161 G.f. A(x) satisfies: A(x) = x + x^2 * A(x/(1 - 6*x)) / (1 - 6*x).

Table of values

n a(n)
0 0
1 1
2 0
3 1
4 12
5 109
6 900
7 7309
8 62280
9 590185
10 6402360
11 78347593
12 1042633908
13 14648616757
14 214421295132
15 3266839420021
16 52041902492496
17 870810496011793
18 15326196662766384
19 283049655668743249
20 5460180803581446684
21 109489002283248831037
22 2273856664328893182324

List of values

[0, 1, 0, 1, 12, 109, 900, 7309, 62280, 590185, 6402360, 78347593, 1042633908, 14648616757, 214421295132, 3266839420021, 52041902492496, 870810496011793, 15326196662766384, 283049655668743249, 5460180803581446684, 109489002283248831037, 2273856664328893182324]

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

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