A059840 - cp's OEIS frontend

A059840 a(n) = F(n)F(n-1) if n odd otherwise F(n)F(n-1)-1, where F = Fibonacci numbers A000045.

n	a(n)
1	0
2	0
3	2
4	5
5	15
6	39
7	104
8	272
9	714
10	1869
11	4895
12	12815
13	33552
14	87840
15	229970
16	602069
17	1576239
18	4126647
19	10803704
20	28284464
21	74049690
22	193864605
23	507544127
24	1328767775
25	3478759200
26	9107509824
27	23843770274
28	62423800997
29	163427632719
30	427859097159
31	1120149658760
32	2932589879120

[0, 0, 2, 5, 15, 39, 104, 272, 714, 1869, 4895, 12815, 33552, 87840, 229970, 602069, 1576239, 4126647, 10803704, 28284464, 74049690, 193864605, 507544127, 1328767775, 3478759200, 9107509824, 23843770274, 62423800997, 163427632719, 427859097159, 1120149658760, 2932589879120]

cp's OEIS Frontend

A059840 a(n) = F(n)F(n-1) if n odd otherwise F(n)F(n-1)-1, where F = Fibonacci numbers A000045.

Table of values

List of values

cp's OEIS Frontend

A059840 a(n) = F(n)*F(n-1) if n odd otherwise F(n)*F(n-1)-1, where F = Fibonacci numbers A000045.

Table of values

List of values

A059840 a(n) = F(n)F(n-1) if n odd otherwise F(n)F(n-1)-1, where F = Fibonacci numbers A000045.