A187275 - cp's OEIS frontend

A187275 a(n) = (n/4)5^(n/2)((1+sqrt(5))^2+(-1)^n*(1-sqrt(5))^2).

n	a(n)
0	0
1	5
2	30
3	75
4	300
5	625
6	2250
7	4375
8	15000
9	28125
10	93750
11	171875
12	562500
13	1015625
14	3281250
15	5859375
16	18750000
17	33203125
18	105468750
19	185546875
20	585937500
21	1025390625
22	3222656250
23	5615234375
24	17578125000
25	30517578125
26	95214843750
27	164794921875
28	512695312500
29	885009765625
30	2746582031250

[0, 5, 30, 75, 300, 625, 2250, 4375, 15000, 28125, 93750, 171875, 562500, 1015625, 3281250, 5859375, 18750000, 33203125, 105468750, 185546875, 585937500, 1025390625, 3222656250, 5615234375, 17578125000, 30517578125, 95214843750, 164794921875, 512695312500, 885009765625, 2746582031250]

cp's OEIS Frontend

A187275 a(n) = (n/4)5^(n/2)((1+sqrt(5))^2+(-1)^n*(1-sqrt(5))^2).

Table of values

List of values

cp's OEIS Frontend

A187275 a(n) = (n/4)*5^(n/2)*((1+sqrt(5))^2+(-1)^n*(1-sqrt(5))^2).

Table of values

List of values

A187275 a(n) = (n/4)5^(n/2)((1+sqrt(5))^2+(-1)^n*(1-sqrt(5))^2).