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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.

A129455 An analog of Pascal's triangle based on A129454. T(n, k) = A129454(n+1)/(A129454(n-k+1)*A129454(k+1)).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 1
6 1
7 3
8 3
9 1
10 1
11 256
12 384
13 256
14 1
15 1
16 5
17 640
18 640
19 5
20 1
21 1
22 1146617856
23 2866544640
24 244611809280
25 2866544640
26 1146617856
27 1
28 1
29 7
30 4013162496
31 6688604160
32 6688604160
33 4013162496
34 7
35 1
36 1
37 35184372088832
38 123145302310912
39 47066867504069920948224
40 919274755938865643520
41 47066867504069920948224
42 123145302310912
43 35184372088832
44 1

List of values

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 256, 384, 256, 1, 1, 5, 640, 640, 5, 1, 1, 1146617856, 2866544640, 244611809280, 2866544640, 1146617856, 1, 1, 7, 4013162496, 6688604160, 6688604160, 4013162496, 7, 1, 1, 35184372088832, 123145302310912, 47066867504069920948224, 919274755938865643520, 47066867504069920948224, 123145302310912, 35184372088832, 1]

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

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