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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.

A277307 G.f. satisfies: A(x - 3*A(x)^2) = x - 2*A(x)^2.

Table of values

n a(n)
1 1
2 1
3 8
4 92
5 1298
6 20988
7 375120
8 7252065
9 149534312
10 3256987724
11 74418884792
12 1774657501252
13 43995940957120
14 1130453689908568
15 30031716838365552
16 823263454676130312
17 23249951990747403528
18 675517165191231019920
19 20168579968950108809736
20 618158189347428262782816
21 19432224179107494743506272
22 626034612821085407187912624

List of values

[1, 1, 8, 92, 1298, 20988, 375120, 7252065, 149534312, 3256987724, 74418884792, 1774657501252, 43995940957120, 1130453689908568, 30031716838365552, 823263454676130312, 23249951990747403528, 675517165191231019920, 20168579968950108809736, 618158189347428262782816, 19432224179107494743506272, 626034612821085407187912624]

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

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