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.

A280574 E.g.f. satisfies: A(x - Integral 3*A(x) dx) = x + Integral 2*A(x) dx.

Table of values

n a(n)
1 1
2 5
3 70
4 1775
5 66175
6 3283475
7 204594175
8 15411893450
9 1366394303500
10 139767921720875
11 16243630181913625
12 2118892887756520250
13 307173379745256857875
14 49084564051462443496250
15 8586127214178418541668750
16 1634509914502001105016284375
17 336910750825106071274158853125
18 74862327518834451026921878887500
19 17862833297180486514281227128971875
20 4561279298680105599840369905594562500

List of values

[1, 5, 70, 1775, 66175, 3283475, 204594175, 15411893450, 1366394303500, 139767921720875, 16243630181913625, 2118892887756520250, 307173379745256857875, 49084564051462443496250, 8586127214178418541668750, 1634509914502001105016284375, 336910750825106071274158853125, 74862327518834451026921878887500, 17862833297180486514281227128971875, 4561279298680105599840369905594562500]

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

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