A348189 - cp's OEIS frontend

A348189 Pseudo-involutory Riordan companion of 1 + 2xM(x), where M(x) is the g.f. of A001006.

n	a(n)
1	1
2	0
3	0
4	2
5	0
6	6
7	8
8	24
9	60
10	148
11	396
12	1026
13	2744
14	7350
15	19872
16	54102
17	148104
18	407682
19	1127328
20	3130542
21	8726256
22	24407634
23	68482776
24	192698124
25	543642476
26	1537443024
27	4357677516
28	12376868254
29	35221087656
30	100409367690
31	286730523104
32	820078634232
33	2348966799132

[1, 0, 0, 2, 0, 6, 8, 24, 60, 148, 396, 1026, 2744, 7350, 19872, 54102, 148104, 407682, 1127328, 3130542, 8726256, 24407634, 68482776, 192698124, 543642476, 1537443024, 4357677516, 12376868254, 35221087656, 100409367690, 286730523104, 820078634232, 2348966799132]

cp's OEIS Frontend

A348189 Pseudo-involutory Riordan companion of 1 + 2xM(x), where M(x) is the g.f. of A001006.

Table of values

List of values

cp's OEIS Frontend

A348189 Pseudo-involutory Riordan companion of 1 + 2*x*M(x), where M(x) is the g.f. of A001006.

Table of values

List of values

A348189 Pseudo-involutory Riordan companion of 1 + 2xM(x), where M(x) is the g.f. of A001006.