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.

A103243 Unreduced numerators of the elements T(n,k)/(n-k)!, read by rows, of the triangular matrix P^-1, which is the inverse of the matrix defined by P(n,k) = (1-(k+1)^3)^(n-k)/(n-k)! for n >= k >= 1.

Table of values

n a(n)
1 1
2 7
3 1
4 315
5 26
6 1
7 45682
8 2600
9 63
10 1
11 15646589
12 675194
13 11655
14 124
15 1
16 10567689552
17 366349152
18 4861458
19 37944
20 215
21 1
22 12503979423607
23 361884843866
24 3882676581
25 23641468
26 100835
27 342
28 1
29 23841011541867520
30 591934698991168
31 5318920238688

List of values

[1, 7, 1, 315, 26, 1, 45682, 2600, 63, 1, 15646589, 675194, 11655, 124, 1, 10567689552, 366349152, 4861458, 37944, 215, 1, 12503979423607, 361884843866, 3882676581, 23641468, 100835, 342, 1, 23841011541867520, 591934698991168, 5318920238688]