A242019 - cp's OEIS frontend

A242019 a(n) = Sum_{k=0..n} Stirling2(2n+k, k) C(n, k).

n	a(n)
0	1
1	1
2	33
3	3409
4	728575
5	265362370
6	147228369351
7	115651594418010
8	122167455441632423
9	167035663137431205196
10	287018982366654934570328
11	605456750773492887086145669
12	1538306721887736189212800143193
13	4633572348321634923252339927247392

[1, 1, 33, 3409, 728575, 265362370, 147228369351, 115651594418010, 122167455441632423, 167035663137431205196, 287018982366654934570328, 605456750773492887086145669, 1538306721887736189212800143193, 4633572348321634923252339927247392]

cp's OEIS Frontend

A242019 a(n) = Sum_{k=0..n} Stirling2(2n+k, k) C(n, k).

Table of values

List of values

cp's OEIS Frontend

A242019 a(n) = Sum_{k=0..n} Stirling2(2*n+k, k) * C(n, k).

Table of values

List of values

A242019 a(n) = Sum_{k=0..n} Stirling2(2n+k, k) C(n, k).