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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.

A192573 a(n) = Sum_{k=0..n} floor(sqrt(Bell(k)))*floor(sqrt(Bell(n-k))).

Table of values

n a(n)
0 1
1 2
2 3
3 6
4 11
5 24
6 52
7 112
8 251
9 574
10 1347
11 3242
12 7996
13 20202
14 52245
15 138200
16 373640
17 1031702
18 2907207
19 8353892
20 24460864
21 72931232
22 221265823
23 682632254
24 2140211338
25 6814954528
26 22027143227
27 72228405060
28 240154754720

List of values

[1, 2, 3, 6, 11, 24, 52, 112, 251, 574, 1347, 3242, 7996, 20202, 52245, 138200, 373640, 1031702, 2907207, 8353892, 24460864, 72931232, 221265823, 682632254, 2140211338, 6814954528, 22027143227, 72228405060, 240154754720]

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

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