cp's OEIS Frontend

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.

A256325 a(n) = Sum_{k=0..n-1} (n-k)!*exp(-k/2)*M_{k-n,1/2}(k), where M is the Whittaker function.

Table of values

n a(n)
0 0
1 0
2 1
3 5
4 24
5 136
6 933
7 7589
8 71376
9 760796
10 9051353
11 118784325
12 1703388648
13 26486926720
14 443732646029
15 7965563713781
16 152504645563072
17 3101366761047860
18 66753627906345057
19 1515914174890163541
20 36218232449903567992
21 908098606824551207384
22 23839591584412453131765

List of values

[0, 0, 1, 5, 24, 136, 933, 7589, 71376, 760796, 9051353, 118784325, 1703388648, 26486926720, 443732646029, 7965563713781, 152504645563072, 3101366761047860, 66753627906345057, 1515914174890163541, 36218232449903567992, 908098606824551207384, 23839591584412453131765]