A076572 - cp's OEIS frontend

A076572 a(0)=1 if n>0 a(n)=(-1)^(n+1)/(2n+1) * Sum_{k=0..n} 4^(4k)B(2k)C(2n+1,2k) where B(k) denotes the k-th Bernoulli number.

n	a(n)
0	1
1	43
2	2099
3	388663
4	139467719
5	81165563683
6	69426732871739
7	81922705364469103
8	127490352997174502159
9	252973121503691631872923
10	623357309124524241322006979
11	1867492959566204749744784303143

[1, 43, 2099, 388663, 139467719, 81165563683, 69426732871739, 81922705364469103, 127490352997174502159, 252973121503691631872923, 623357309124524241322006979, 1867492959566204749744784303143]

cp's OEIS Frontend

A076572 a(0)=1 if n>0 a(n)=(-1)^(n+1)/(2n+1) * Sum_{k=0..n} 4^(4k)B(2k)C(2n+1,2k) where B(k) denotes the k-th Bernoulli number.

Table of values

List of values

cp's OEIS Frontend

A076572 a(0)=1 if n>0 a(n)=(-1)^(n+1)/(2n+1) * Sum_{k=0..n} 4^(4k)*B(2k)*C(2n+1,2k) where B(k) denotes the k-th Bernoulli number.

Table of values

List of values

A076572 a(0)=1 if n>0 a(n)=(-1)^(n+1)/(2n+1) * Sum_{k=0..n} 4^(4k)B(2k)C(2n+1,2k) where B(k) denotes the k-th Bernoulli number.