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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.

A135748 a(n) = Sum_{k=0..n} binomial(n,k)*2^(k^2).

Table of values

n a(n)
0 1
1 3
2 21
3 567
4 67689
5 33887403
6 68921796861
7 563431696713567
8 18451249599365935569
9 2418017680197896730749523
10 1267674779574792745831097365221
11 2658469935859419140387217204140789127
12 22300777100086187451068223319189800258419769

List of values

[1, 3, 21, 567, 67689, 33887403, 68921796861, 563431696713567, 18451249599365935569, 2418017680197896730749523, 1267674779574792745831097365221, 2658469935859419140387217204140789127, 22300777100086187451068223319189800258419769]

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

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