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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.

A371986 Product of Lucas and Catalan numbers: a(n) = A000032(n)*A000108(n).

Table of values

n a(n)
0 2
1 1
2 6
3 20
4 98
5 462
6 2376
7 12441
8 67210
9 369512
10 2065908
11 11698414
12 66979864
13 387050900
14 2254552920
15 13223768580
16 78034377690
17 462961545090
18 2759796408600
19 16522143563310
20 99295449593340
21 598836351581520
22 3622983967834920
23 21982916983078350
24 133739841802846968

List of values

[2, 1, 6, 20, 98, 462, 2376, 12441, 67210, 369512, 2065908, 11698414, 66979864, 387050900, 2254552920, 13223768580, 78034377690, 462961545090, 2759796408600, 16522143563310, 99295449593340, 598836351581520, 3622983967834920, 21982916983078350, 133739841802846968]

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

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