A112476 - cp's OEIS frontend

A112476 Diagonal sums of Riordan array (1/(1+x),x(1+x)/(1-x)).

n	a(n)
0	1
1	-1
2	2
3	0
4	3
5	3
6	8
7	12
8	25
9	43
10	82
11	148
12	275
13	503
14	928
15	1704
16	3137
17	5767
18	10610
19	19512
20	35891
21	66011
22	121416
23	223316
24	410745
25	755475
26	1389538
27	2555756
28	4700771
29	8646063
30	15902592
31	29249424
32	53798081
33	98950095
34	181997602
35	334745776
36	615693475
37	1132436851
38	2082876104
39	3831006428

[1, -1, 2, 0, 3, 3, 8, 12, 25, 43, 82, 148, 275, 503, 928, 1704, 3137, 5767, 10610, 19512, 35891, 66011, 121416, 223316, 410745, 755475, 1389538, 2555756, 4700771, 8646063, 15902592, 29249424, 53798081, 98950095, 181997602, 334745776, 615693475, 1132436851, 2082876104, 3831006428]

cp's OEIS Frontend

A112476 Diagonal sums of Riordan array (1/(1+x),x(1+x)/(1-x)).

Table of values

List of values