A064319 - cp's OEIS frontend

A064319 Triangle with a(n,1) = n and a(n,k) = a(n,k-1) * a(n-1,k-1).

n	a(n)
1	1
2	2
3	2
4	3
5	6
6	12
7	4
8	12
9	72
10	864
11	5
12	20
13	240
14	17280
15	14929920
16	6
17	30
18	600
19	144000
20	2488320000
21	37150418534400000
22	7
23	42
24	1260
25	756000
26	108864000000
27	270888468480000000000
28	10063619980174622195712000000000000000
29	8
30	56

[1, 2, 2, 3, 6, 12, 4, 12, 72, 864, 5, 20, 240, 17280, 14929920, 6, 30, 600, 144000, 2488320000, 37150418534400000, 7, 42, 1260, 756000, 108864000000, 270888468480000000000, 10063619980174622195712000000000000000, 8, 56]

cp's OEIS Frontend

A064319 Triangle with a(n,1) = n and a(n,k) = a(n,k-1) * a(n-1,k-1).

Table of values

List of values