A060944 - cp's OEIS frontend

A060944 a(n) = n!^2 * Sum_{k=1..n} Sum_{j=1..k} 1/j^2.

n	a(n)
1	1
2	9
3	130
4	2900
5	93576
6	4141872
7	241353792
8	17929776384
9	1655071418880
10	185914776960000
11	24978180045312000
12	3955930130221056000
13	729464836964806656000
14	154952762244805582848000
15	37566943754471090749440000
16	10310706109241121091092480000

[1, 9, 130, 2900, 93576, 4141872, 241353792, 17929776384, 1655071418880, 185914776960000, 24978180045312000, 3955930130221056000, 729464836964806656000, 154952762244805582848000, 37566943754471090749440000, 10310706109241121091092480000]

cp's OEIS Frontend

A060944 a(n) = n!^2 * Sum_{k=1..n} Sum_{j=1..k} 1/j^2.

Table of values

List of values