A082578 - cp's OEIS frontend

A082578 a(n) = Sum_{k=0..n} binomial(2k, k) binomial(2*k+1,k).

n	a(n)
0	1
1	7
2	67
3	767
4	9587
5	126011
6	1711595
7	23796515
8	336666215
9	4828084575
10	69994481871
11	1023793569567
12	15086216016367
13	223704570996367
14	3335098322412367
15	49954148031128767
16	751296616443141667

[1, 7, 67, 767, 9587, 126011, 1711595, 23796515, 336666215, 4828084575, 69994481871, 1023793569567, 15086216016367, 223704570996367, 3335098322412367, 49954148031128767, 751296616443141667]

cp's OEIS Frontend

A082578 a(n) = Sum_{k=0..n} binomial(2k, k) binomial(2*k+1,k).

Table of values

List of values

cp's OEIS Frontend

A082578 a(n) = Sum_{k=0..n} binomial(2*k, k) * binomial(2*k+1,k).

Table of values

List of values

A082578 a(n) = Sum_{k=0..n} binomial(2k, k) binomial(2*k+1,k).