A086864 - cp's OEIS frontend

A086864 a(n) = (n-1)(n-2)(n-3)(3n-10)*3^(n-5)/4.

n	a(n)
1	0
2	0
3	0
4	1
5	30
6	360
7	2970
8	19845
9	115668
10	612360
11	3018060
12	14073345
13	62788770
14	270208224
15	1128426390
16	4594307445
17	18302828040
18	71553216240
19	275154640632
20	1042806816225
21	3901324324230
22	14427539010360
23	52801538445810
24	191427950399301
25	688082033693340

[0, 0, 0, 1, 30, 360, 2970, 19845, 115668, 612360, 3018060, 14073345, 62788770, 270208224, 1128426390, 4594307445, 18302828040, 71553216240, 275154640632, 1042806816225, 3901324324230, 14427539010360, 52801538445810, 191427950399301, 688082033693340]

cp's OEIS Frontend

A086864 a(n) = (n-1)(n-2)(n-3)(3n-10)*3^(n-5)/4.

Table of values

List of values

cp's OEIS Frontend

A086864 a(n) = (n-1)*(n-2)*(n-3)*(3*n-10)*3^(n-5)/4.

Table of values

List of values

A086864 a(n) = (n-1)(n-2)(n-3)(3n-10)*3^(n-5)/4.