A048757 - cp's OEIS frontend

A048757 Sum_{i=0..2n} (C(2n,i) mod 2)Fibonacci(i+2) = Sum_{i=0..n} (C(n,i) mod 2)Fibonacci(2i+2).

n	a(n)
0	1
1	4
2	9
3	33
4	56
5	203
6	441
7	1596
8	2585
9	9353
10	20304
11	73461
12	124033
13	448756
14	974169
15	3524577
16	5702888
17	20633243
18	44791065
19	162055596
20	273617239
21	989956471
22	2149017696
23	7775219067
24	12591974497
25	45558191716
26	98898651657

[1, 4, 9, 33, 56, 203, 441, 1596, 2585, 9353, 20304, 73461, 124033, 448756, 974169, 3524577, 5702888, 20633243, 44791065, 162055596, 273617239, 989956471, 2149017696, 7775219067, 12591974497, 45558191716, 98898651657]

cp's OEIS Frontend

A048757 Sum_{i=0..2n} (C(2n,i) mod 2)Fibonacci(i+2) = Sum_{i=0..n} (C(n,i) mod 2)Fibonacci(2i+2).

Table of values

List of values

cp's OEIS Frontend

A048757 Sum_{i=0..2n} (C(2n,i) mod 2)*Fibonacci(i+2) = Sum_{i=0..n} (C(n,i) mod 2)*Fibonacci(2i+2).

Table of values

List of values

A048757 Sum_{i=0..2n} (C(2n,i) mod 2)Fibonacci(i+2) = Sum_{i=0..n} (C(n,i) mod 2)Fibonacci(2i+2).