A132818 - cp's OEIS frontend

A132818 The matrix product A127773 * A001263 of infinite lower triangular matrices.

n	a(n)
1	1
2	3
3	3
4	6
5	18
6	6
7	10
8	60
9	60
10	10
11	15
12	150
13	300
14	150
15	15
16	21
17	315
18	1050
19	1050
20	315
21	21
22	28
23	588
24	2940
25	4900
26	2940
27	588
28	28
29	36
30	1008
31	7056
32	17640
33	17640
34	7056
35	1008
36	36
37	45
38	1620
39	15120
40	52920
41	79380
42	52920
43	15120
44	1620
45	45
46	55
47	2475
48	29700
49	138600
50	291060

[1, 3, 3, 6, 18, 6, 10, 60, 60, 10, 15, 150, 300, 150, 15, 21, 315, 1050, 1050, 315, 21, 28, 588, 2940, 4900, 2940, 588, 28, 36, 1008, 7056, 17640, 17640, 7056, 1008, 36, 45, 1620, 15120, 52920, 79380, 52920, 15120, 1620, 45, 55, 2475, 29700, 138600, 291060]

cp's OEIS Frontend

A132818 The matrix product A127773 * A001263 of infinite lower triangular matrices.

Table of values

List of values