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.

A153656 Triangle T(n, k) = T(n-1, k) + T(n-1, k-1) + (2*j +3)*prime(j)*T(n-2, k-1) with j=9, read by rows.

Table of values

n a(n)
1 2
2 23
3 23
4 2
5 1054
6 2
7 2
8 12165
9 12165
10 2
11 2
12 13133
13 533412
14 13133
15 2
16 2
17 14101
18 6422240
19 6422240
20 14101
21 2
22 2
23 15069
24 12779580
25 270482476
26 12779580
27 15069
28 2
29 2
30 16037
31 19605432
32 3385203976
33 3385203976
34 19605432
35 16037
36 2
37 2
38 17005
39 26899796
40 9577346548
41 137413443860
42 9577346548
43 26899796
44 17005
45 2

List of values

[2, 23, 23, 2, 1054, 2, 2, 12165, 12165, 2, 2, 13133, 533412, 13133, 2, 2, 14101, 6422240, 6422240, 14101, 2, 2, 15069, 12779580, 270482476, 12779580, 15069, 2, 2, 16037, 19605432, 3385203976, 3385203976, 19605432, 16037, 2, 2, 17005, 26899796, 9577346548, 137413443860, 9577346548, 26899796, 17005, 2]

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

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