A270737 - cp's OEIS frontend

A270737 a(n) = ((n+2)/2)Sum_{k=0..n/2} (Sum_{i=0..n-2k} (binomial(k+1,n-2k-i)binomial(k+i,k))*F(k+1)/(k+1)), where F(k) is Fibonacci numbers.

n	a(n)
0	1
1	3
2	5
3	10
4	20
5	42
6	91
7	195
8	415
9	880
10	1864
11	3952
12	8385
13	17795
14	37765
15	80138
16	170044
17	360810
18	765595
19	1624515
20	3447071
21	7314368
22	15520400
23	32932800
24	69880225
25	148279107
26	314634021
27	667623210
28	1416632420
29	3005958090
30	6378354619

[1, 3, 5, 10, 20, 42, 91, 195, 415, 880, 1864, 3952, 8385, 17795, 37765, 80138, 170044, 360810, 765595, 1624515, 3447071, 7314368, 15520400, 32932800, 69880225, 148279107, 314634021, 667623210, 1416632420, 3005958090, 6378354619]

cp's OEIS Frontend

A270737 a(n) = ((n+2)/2)Sum_{k=0..n/2} (Sum_{i=0..n-2k} (binomial(k+1,n-2k-i)binomial(k+i,k))*F(k+1)/(k+1)), where F(k) is Fibonacci numbers.

Table of values

List of values

cp's OEIS Frontend

A270737 a(n) = ((n+2)/2)*Sum_{k=0..n/2} (Sum_{i=0..n-2*k} (binomial(k+1,n-2*k-i)*binomial(k+i,k))*F(k+1)/(k+1)), where F(k) is Fibonacci numbers.

Table of values

List of values

A270737 a(n) = ((n+2)/2)Sum_{k=0..n/2} (Sum_{i=0..n-2k} (binomial(k+1,n-2k-i)binomial(k+i,k))*F(k+1)/(k+1)), where F(k) is Fibonacci numbers.