A191584 - cp's OEIS frontend

A191584 Diagonal sums of the Riordan matrix (1/(1-3*x^2),x/(1-x)) (A191582).

n	a(n)
0	1
1	0
2	4
3	1
4	14
5	6
6	47
7	26
8	154
9	99
10	496
11	352
12	1577
13	1200
14	4964
15	3977
16	15502
17	12918
18	48103
19	41338
20	148490
21	130779
22	456416
23	410048
24	1397905
25	1276512
26	4268740
27	3950929
28	13002638
29	12170598
30	39522143
31	37343834
32	119912698
33	114209811
34	363262672
35	348332320
36	1099015481
37	1059927312

[1, 0, 4, 1, 14, 6, 47, 26, 154, 99, 496, 352, 1577, 1200, 4964, 3977, 15502, 12918, 48103, 41338, 148490, 130779, 456416, 410048, 1397905, 1276512, 4268740, 3950929, 13002638, 12170598, 39522143, 37343834, 119912698, 114209811, 363262672, 348332320, 1099015481, 1059927312]

cp's OEIS Frontend

A191584 Diagonal sums of the Riordan matrix (1/(1-3*x^2),x/(1-x)) (A191582).

Table of values

List of values