A368839 - cp's OEIS frontend

A368839 a(n) = n! * (n+1)! * (n+2)! * Sum_{k=0..n} 1/(k! * (k+1)! * (k+2)!).

n	a(n)
0	1
1	7
2	169
3	10141
4	1216921
5	255553411
6	85865946097
7	43276436832889
8	31159034519680081
9	30847444174483280191
10	40718626310317929852121
11	69873162748505567626239637
12	152602987442736159695707367209
13	416606155718669715969281112480571

[1, 7, 169, 10141, 1216921, 255553411, 85865946097, 43276436832889, 31159034519680081, 30847444174483280191, 40718626310317929852121, 69873162748505567626239637, 152602987442736159695707367209, 416606155718669715969281112480571]

cp's OEIS Frontend

A368839 a(n) = n! * (n+1)! * (n+2)! * Sum_{k=0..n} 1/(k! * (k+1)! * (k+2)!).

Table of values

List of values