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.

A277302 G.f. satisfies: A(x - 3*A(x)^2) = x + 2*A(x)^2.

Table of values

n a(n)
1 1
2 5
3 80
4 1900
5 55490
6 1848660
7 67630080
8 2657251005
9 110560510400
10 4824793769260
11 219334788340040
12 10334817935549420
13 502814686712631520
14 25184673137026274600
15 1295595210394570426800
16 68326193725188929358600
17 3688253200687778850553800
18 203524353764195058692833200
19 11468618360097679305600299400
20 659345494779348103800864088800
21 38644445208422874351089132287200

List of values

[1, 5, 80, 1900, 55490, 1848660, 67630080, 2657251005, 110560510400, 4824793769260, 219334788340040, 10334817935549420, 502814686712631520, 25184673137026274600, 1295595210394570426800, 68326193725188929358600, 3688253200687778850553800, 203524353764195058692833200, 11468618360097679305600299400, 659345494779348103800864088800, 38644445208422874351089132287200]

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

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