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.

A249930 G.f. A(x) satisfies: 1+x = A(x)^2 + A(x)^6 - A(x)^7.

Table of values

n a(n)
0 1
1 1
2 5
3 65
4 1020
5 17915
6 336881
7 6634391
8 135085305
9 2820748975
10 60074608660
11 1299896748546
12 28496343865808
13 631545920570632
14 14126673078922850
15 318514279669755470
16 7231331734648562366
17 165172699475903928921
18 3793005825337785580290
19 87518313783310367308770

List of values

[1, 1, 5, 65, 1020, 17915, 336881, 6634391, 135085305, 2820748975, 60074608660, 1299896748546, 28496343865808, 631545920570632, 14126673078922850, 318514279669755470, 7231331734648562366, 165172699475903928921, 3793005825337785580290, 87518313783310367308770]

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

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