A191586 - cp's OEIS frontend

A191586 Binomial row sums of the Riordan matrix (1/(1-x),x/(1-x^2)) (A046854).

n	a(n)
0	1
1	2
2	4
3	11
4	32
5	92
6	271
7	814
8	2464
9	7508
10	23024
11	70952
12	219503
13	681358
14	2121116
15	6619571
16	20703040
17	64873328
18	203625604
19	640109128
20	2014951552
21	6350490808
22	20037015200
23	63284778256
24	200063948527
25	633007850942
26	2004431426716
27	6351693835169
28	20141013776384

[1, 2, 4, 11, 32, 92, 271, 814, 2464, 7508, 23024, 70952, 219503, 681358, 2121116, 6619571, 20703040, 64873328, 203625604, 640109128, 2014951552, 6350490808, 20037015200, 63284778256, 200063948527, 633007850942, 2004431426716, 6351693835169, 20141013776384]

cp's OEIS Frontend

A191586 Binomial row sums of the Riordan matrix (1/(1-x),x/(1-x^2)) (A046854).

Table of values

List of values