A136214 - cp's OEIS frontend

A136214 Triangle U, read by rows, where U(n,k) = Product_{j=k..n-1} (3*j+1) for n > k with U(n,n) = 1.

n	a(n)
0	1
1	1
2	1
3	4
4	4
5	1
6	28
7	28
8	7
9	1
10	280
11	280
12	70
13	10
14	1
15	3640
16	3640
17	910
18	130
19	13
20	1
21	58240
22	58240
23	14560
24	2080
25	208
26	16
27	1
28	1106560
29	1106560
30	276640
31	39520
32	3952
33	304
34	19
35	1
36	24344320
37	24344320
38	6086080
39	869440
40	86944
41	6688
42	418
43	22
44	1

[1, 1, 1, 4, 4, 1, 28, 28, 7, 1, 280, 280, 70, 10, 1, 3640, 3640, 910, 130, 13, 1, 58240, 58240, 14560, 2080, 208, 16, 1, 1106560, 1106560, 276640, 39520, 3952, 304, 19, 1, 24344320, 24344320, 6086080, 869440, 86944, 6688, 418, 22, 1]

cp's OEIS Frontend

A136214 Triangle U, read by rows, where U(n,k) = Product_{j=k..n-1} (3*j+1) for n > k with U(n,n) = 1.

Table of values

List of values