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.

A248473 Triangle of numbers b(i,j) = A(binomial(A(i), A(j))), where A = A007913, with the convention that A(0)=0.

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 1
12 0
13 0
14 1
15 1
16 5
17 10
18 10
19 5
20 1
21 1
22 6
23 15
24 5
25 6
26 6
27 1
28 1
29 7
30 21
31 35
32 7
33 21
34 7
35 1
36 1
37 2
38 1
39 0
40 2
41 0
42 0
43 0
44 1
45 1
46 1
47 0
48 0
49 1
50 0
51 0
52 0
53 0
54 1
55 1
56 10
57 5
58 30
59 10
60 7
61 210
62 30
63 5
64 10
65 1
66 1
67 11
68 55
69 165
70 11
71 462
72 462
73 330
74 55
75 11
76 11
77 1

List of values

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 1, 0, 0, 1, 1, 5, 10, 10, 5, 1, 1, 6, 15, 5, 6, 6, 1, 1, 7, 21, 35, 7, 21, 7, 1, 1, 2, 1, 0, 2, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 10, 5, 30, 10, 7, 210, 30, 5, 10, 1, 1, 11, 55, 165, 11, 462, 462, 330, 55, 11, 11, 1]

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

Content is available under The OEIS End-User License Agreement.