A191010 - cp's OEIS frontend

A191010 a(n) = (n4^(n+1) + (64^(n+1)+(-1)^n)/5)/5.

n	a(n)
0	1
1	7
2	41
3	215
4	1065
5	5079
6	23593
7	107479
8	482345
9	2139095
10	9395241
11	40936407
12	177167401
13	762356695
14	3264175145
15	13915694039
16	59098749993
17	250138895319
18	1055531162665
19	4442026976215
20	18647717207081
21	78109306037207
22	326510972984361
23	1362338887279575

[1, 7, 41, 215, 1065, 5079, 23593, 107479, 482345, 2139095, 9395241, 40936407, 177167401, 762356695, 3264175145, 13915694039, 59098749993, 250138895319, 1055531162665, 4442026976215, 18647717207081, 78109306037207, 326510972984361, 1362338887279575]

cp's OEIS Frontend

A191010 a(n) = (n4^(n+1) + (64^(n+1)+(-1)^n)/5)/5.

Table of values

List of values

cp's OEIS Frontend

A191010 a(n) = (n*4^(n+1) + (6*4^(n+1)+(-1)^n)/5)/5.

Table of values

List of values

A191010 a(n) = (n4^(n+1) + (64^(n+1)+(-1)^n)/5)/5.