A111262 - cp's OEIS frontend

A111262 a(n) = (1/n)Sum_{k=1..n} F(4k)B(2n-2k)binomial(2n,2k), where F are Fibonacci numbers and B are Bernoulli numbers.

n	a(n)
1	3
2	12
3	65
4	403
5	2652
6	17889
7	121859
8	833260
9	5706081
10	39096531
11	267936188
12	1836369217
13	12586419075
14	86267964108
15	591287758337
16	4052742230419
17	27777897084444
18	190392509164065
19	1304969593244291
20	8944394450283436

[3, 12, 65, 403, 2652, 17889, 121859, 833260, 5706081, 39096531, 267936188, 1836369217, 12586419075, 86267964108, 591287758337, 4052742230419, 27777897084444, 190392509164065, 1304969593244291, 8944394450283436]

cp's OEIS Frontend

A111262 a(n) = (1/n)Sum_{k=1..n} F(4k)B(2n-2k)binomial(2n,2k), where F are Fibonacci numbers and B are Bernoulli numbers.

Table of values

List of values

cp's OEIS Frontend

A111262 a(n) = (1/n)*Sum_{k=1..n} F(4*k)*B(2*n-2*k)*binomial(2*n,2*k), where F are Fibonacci numbers and B are Bernoulli numbers.

Table of values

List of values

A111262 a(n) = (1/n)Sum_{k=1..n} F(4k)B(2n-2k)binomial(2n,2k), where F are Fibonacci numbers and B are Bernoulli numbers.