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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.

A136104 A007318 * A002110; a(n) = Sum_{k=0..n} binomial(n,k)*A002110(k).

Table of values

n a(n)
0 1
1 3
2 11
3 55
4 375
5 3731
6 47743
7 777771
8 14770535
9 331611235
10 9205305591
11 285781156343
12 10308779559631
13 418386835375575
14 18097509979840775
15 846748292083023991
16 44182142790019823943
17 2570069981187508600331
18 157428743473326543397855
19 10449715795107936675445215
20 739751959772798881608189731

List of values

[1, 3, 11, 55, 375, 3731, 47743, 777771, 14770535, 331611235, 9205305591, 285781156343, 10308779559631, 418386835375575, 18097509979840775, 846748292083023991, 44182142790019823943, 2570069981187508600331, 157428743473326543397855, 10449715795107936675445215, 739751959772798881608189731]

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

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