A276823 - cp's OEIS frontend

A276823 a(n) = 3 * [3n]_2! / ([2n+1]_2! * [n+1]_2!), where [n]_q! is the q-factorial.

n	a(n)
1	1
2	9
3	1241
4	2634489
5	87807053113
6	46414431022602681
7	390913823614809035461305
8	52571422826552549403006580802745
9	113007269646365312407427675894837602068665
10	3884802624238339577626451297006421856376970743148729

[1, 9, 1241, 2634489, 87807053113, 46414431022602681, 390913823614809035461305, 52571422826552549403006580802745, 113007269646365312407427675894837602068665, 3884802624238339577626451297006421856376970743148729]

cp's OEIS Frontend

A276823 a(n) = 3 * [3n]_2! / ([2n+1]_2! * [n+1]_2!), where [n]_q! is the q-factorial.

Table of values

List of values

cp's OEIS Frontend

A276823 a(n) = 3 * [3*n]_2! / ([2*n+1]_2! * [n+1]_2!), where [n]_q! is the q-factorial.

Table of values

List of values

A276823 a(n) = 3 * [3n]_2! / ([2n+1]_2! * [n+1]_2!), where [n]_q! is the q-factorial.