A006490 - cp's OEIS frontend

A006490 a(1) = 1, a(2) = 0; for n > 2, a(n) = n*Fibonacci(n-2) (with the convention Fibonacci(0)=0, Fibonacci(1)=1).

n	a(n)
1	1
2	0
3	3
4	4
5	10
6	18
7	35
8	64
9	117
10	210
11	374
12	660
13	1157
14	2016
15	3495
16	6032
17	10370
18	17766
19	30343
20	51680
21	87801
22	148830
23	251758
24	425064
25	716425
26	1205568
27	2025675
28	3399004
29	5696122
30	9534330
31	15941099
32	26625280
33	44426877
34	74062506
35	123360230
36	205303932
37	341416205
38	567353376

[1, 0, 3, 4, 10, 18, 35, 64, 117, 210, 374, 660, 1157, 2016, 3495, 6032, 10370, 17766, 30343, 51680, 87801, 148830, 251758, 425064, 716425, 1205568, 2025675, 3399004, 5696122, 9534330, 15941099, 26625280, 44426877, 74062506, 123360230, 205303932, 341416205, 567353376]

cp's OEIS Frontend

A006490 a(1) = 1, a(2) = 0; for n > 2, a(n) = n*Fibonacci(n-2) (with the convention Fibonacci(0)=0, Fibonacci(1)=1).

Table of values

List of values