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.

A141417 (-1)^(n+1)*A091137(n)*a(0,n), where a(i,j) = Integral_{x=i..i+1} x*(x-1)*(x-2)*...*(x-j+1)/j! dx.

Table of values

n a(n)
0 -1
1 1
2 1
3 1
4 19
5 27
6 863
7 1375
8 33953
9 57281
10 3250433
11 5675265
12 13695779093
13 24466579093
14 132282840127
15 240208245823
16 111956703448001
17 205804074290625
18 151711881512390095
19 281550972898020815
20 86560056264289860203
21 161867055619224199787
22 20953816286242674495191
23 39427936010479474495191

List of values

[-1, 1, 1, 1, 19, 27, 863, 1375, 33953, 57281, 3250433, 5675265, 13695779093, 24466579093, 132282840127, 240208245823, 111956703448001, 205804074290625, 151711881512390095, 281550972898020815, 86560056264289860203, 161867055619224199787, 20953816286242674495191, 39427936010479474495191]