A247344 - cp's OEIS frontend

A247344 a(n) = 1 for n <= 4; a(n) = 25a(n-1) - 200a(n-2) + 800a(n-3) - 1600a(n-4) + 1280*a(n-5) otherwise.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	305
6	7905
7	137105
8	2090305
9	30673905
10	446213025
11	6483539025
12	94216001025
13	1369259983025
14	19900452349025
15	289229603172625
16	4203610924242625
17	61094494859232625
18	887935798190222625

[1, 1, 1, 1, 1, 305, 7905, 137105, 2090305, 30673905, 446213025, 6483539025, 94216001025, 1369259983025, 19900452349025, 289229603172625, 4203610924242625, 61094494859232625, 887935798190222625]

cp's OEIS Frontend

A247344 a(n) = 1 for n <= 4; a(n) = 25a(n-1) - 200a(n-2) + 800a(n-3) - 1600a(n-4) + 1280*a(n-5) otherwise.

Table of values

List of values

cp's OEIS Frontend

A247344 a(n) = 1 for n <= 4; a(n) = 25*a(n-1) - 200*a(n-2) + 800*a(n-3) - 1600*a(n-4) + 1280*a(n-5) otherwise.

Table of values

List of values

A247344 a(n) = 1 for n <= 4; a(n) = 25a(n-1) - 200a(n-2) + 800a(n-3) - 1600a(n-4) + 1280*a(n-5) otherwise.