A113968 - cp's OEIS frontend

A113968 a(0) = 0 and a(n) = (5(-4)^n + 16(-1)^n + 9*4^n)/240 for n >= 1.

n	a(n)
0	0
1	0
2	1
3	1
4	15
5	17
6	239
7	273
8	3823
9	4369
10	61167
11	69905
12	978671
13	1118481
14	15658735
15	17895697
16	250539759
17	286331153
18	4008636143
19	4581298449
20	64138178287
21	73300775185
22	1026210852591
23	1172812402961
24	16419373641455
25	18764998447377

[0, 0, 1, 1, 15, 17, 239, 273, 3823, 4369, 61167, 69905, 978671, 1118481, 15658735, 17895697, 250539759, 286331153, 4008636143, 4581298449, 64138178287, 73300775185, 1026210852591, 1172812402961, 16419373641455, 18764998447377]

cp's OEIS Frontend

A113968 a(0) = 0 and a(n) = (5(-4)^n + 16(-1)^n + 9*4^n)/240 for n >= 1.

Table of values

List of values

cp's OEIS Frontend

A113968 a(0) = 0 and a(n) = (5*(-4)^n + 16*(-1)^n + 9*4^n)/240 for n >= 1.

Table of values

List of values

A113968 a(0) = 0 and a(n) = (5(-4)^n + 16(-1)^n + 9*4^n)/240 for n >= 1.