A084901 - cp's OEIS frontend

A084901 a(n) = 4^(n-2)n(5*n+3)/2.

n	a(n)
0	0
1	1
2	13
3	108
4	736
5	4480
6	25344
7	136192
8	704512
9	3538944
10	17367040
11	83623936
12	396361728
13	1853882368
14	8573157376
15	39258685440
16	178241142784
17	803158884352
18	3594887626752
19	15994458210304
20	70781061038080
21	311711546474496

[0, 1, 13, 108, 736, 4480, 25344, 136192, 704512, 3538944, 17367040, 83623936, 396361728, 1853882368, 8573157376, 39258685440, 178241142784, 803158884352, 3594887626752, 15994458210304, 70781061038080, 311711546474496]

cp's OEIS Frontend

A084901 a(n) = 4^(n-2)n(5*n+3)/2.

Table of values

List of values

cp's OEIS Frontend

A084901 a(n) = 4^(n-2)*n*(5*n+3)/2.

Table of values

List of values

A084901 a(n) = 4^(n-2)n(5*n+3)/2.