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.

A375761 Infinite triangle T(n, k), n > 0, k = 1..n, read and filled in the greedy way by rows with distinct positive integers such that for any n > 1, k = 2..n, T(n, k) = T(n-1, k-1) * T(n, k-1).

Table of values

n a(n)
1 2
2 3
3 6
4 4
5 12
6 72
7 5
8 20
9 240
10 17280
11 7
12 35
13 700
14 168000
15 2903040000
16 8
17 56
18 1960
19 1372000
20 230496000000
21 669139107840000000000
22 10
23 80
24 4480
25 8780800
26 12047257600000
27 2776844687769600000000000
28 1858095376984393503473664000000000000000000000

List of values

[2, 3, 6, 4, 12, 72, 5, 20, 240, 17280, 7, 35, 700, 168000, 2903040000, 8, 56, 1960, 1372000, 230496000000, 669139107840000000000, 10, 80, 4480, 8780800, 12047257600000, 2776844687769600000000000, 1858095376984393503473664000000000000000000000]