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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.

A354248 G.f. A(x) satisfies: 1 = Sum_{n=-oo..+oo} (-x)^(n^2) * A(x)^((n-1)^2).

Table of values

n a(n)
0 1
1 2
2 8
3 56
4 446
5 3892
6 35904
7 344560
8 3404596
9 34404674
10 353918256
11 3693791848
12 39016573992
13 416304888148
14 4480415851648
15 48580221470672
16 530179054137166
17 5819280845268420
18 64197617764575032
19 711435650735024792
20 7916252834038848088
21 88409756229441531072

List of values

[1, 2, 8, 56, 446, 3892, 35904, 344560, 3404596, 34404674, 353918256, 3693791848, 39016573992, 416304888148, 4480415851648, 48580221470672, 530179054137166, 5819280845268420, 64197617764575032, 711435650735024792, 7916252834038848088, 88409756229441531072]

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

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