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.

A277301 G.f. satisfies: A(x - 2*A(x)^2) = x + 3*A(x)^2.

Table of values

n a(n)
1 1
2 5
3 70
4 1425
5 35410
6 999210
7 30855820
8 1020407105
9 35642665050
10 1302725802510
11 49490450201460
12 1944619121474970
13 78734794663758580
14 3275324221277662900
15 139667810517388712600
16 6093781146211490413825
17 271623891311306597652650
18 12353670814537544856558950
19 572686428900679117724156900
20 27036308383662996662940155550
21 1298856469077709523772645582300

List of values

[1, 5, 70, 1425, 35410, 999210, 30855820, 1020407105, 35642665050, 1302725802510, 49490450201460, 1944619121474970, 78734794663758580, 3275324221277662900, 139667810517388712600, 6093781146211490413825, 271623891311306597652650, 12353670814537544856558950, 572686428900679117724156900, 27036308383662996662940155550, 1298856469077709523772645582300]

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

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