A330051 - cp's OEIS frontend

A330051 a(n) = 1 + F(2n+1) - (F(n+4) - (-1)^nF(n-2))/2 where F=A000045.

n	a(n)
0	0
1	0
2	2
3	7
4	25
5	72
6	208
7	564
8	1530
9	4059
10	10769
11	28336
12	74560
13	195576
14	513010
15	1344063
16	3521385
17	9221688
18	24149456
19	63230860
20	165558250
21	433454835
22	1134845857
23	2971111392
24	7778592000
25	20364739632
26	53315898338
27	139583151799
28	365434267705
29	956720165544

[0, 0, 2, 7, 25, 72, 208, 564, 1530, 4059, 10769, 28336, 74560, 195576, 513010, 1344063, 3521385, 9221688, 24149456, 63230860, 165558250, 433454835, 1134845857, 2971111392, 7778592000, 20364739632, 53315898338, 139583151799, 365434267705, 956720165544]

cp's OEIS Frontend

A330051 a(n) = 1 + F(2n+1) - (F(n+4) - (-1)^nF(n-2))/2 where F=A000045.

Table of values

List of values

cp's OEIS Frontend

A330051 a(n) = 1 + F(2*n+1) - (F(n+4) - (-1)^n*F(n-2))/2 where F=A000045.

Table of values

List of values

A330051 a(n) = 1 + F(2n+1) - (F(n+4) - (-1)^nF(n-2))/2 where F=A000045.