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.

A240776 Define a square array B(m,n) (m>=0, n>=0) by B(n, n) = A212196(n)/A181131(n), B(n, n+1) = -A212196(n)/A181131(n), B(m, n) = B(m, n-1) + B(m+1, n-1); a(n) = numerator of B(0,n).

Table of values

n a(n)
0 1
1 -1
2 -4
3 -1
4 -8
5 -1
6 -8
7 -3
8 -8
9 1
10 104
11 -41
12 -920
13 1767
14 20168
15 -8317
16 -2022392
17 869807
18 291391192
19 -129169263
20 -2759924456
21 250158593
22 146772324808
23 -67632514765
24 -10164962436952

List of values

[1, -1, -4, -1, -8, -1, -8, -3, -8, 1, 104, -41, -920, 1767, 20168, -8317, -2022392, 869807, 291391192, -129169263, -2759924456, 250158593, 146772324808, -67632514765, -10164962436952]