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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.

A328810 a(n) = Sum_{i=0..n} binomial(n,i)*Sum_{j=0..i} binomial(i,j)^n.

Table of values

n a(n)
0 1
1 3
2 11
3 93
4 2583
5 260613
6 99915029
7 144072750195
8 808177412109895
9 16892305881120020613
10 1388286655114683125139201
11 423109739462061163278604529475
12 511885816860737850466697173188711669
13 2296554708428991868313593456071099604464483

List of values

[1, 3, 11, 93, 2583, 260613, 99915029, 144072750195, 808177412109895, 16892305881120020613, 1388286655114683125139201, 423109739462061163278604529475, 511885816860737850466697173188711669, 2296554708428991868313593456071099604464483]

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

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