A145622 - cp's OEIS frontend

A145622 Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=7.

n	a(n)
1	2
2	12
3	20
4	40
5	72
6	792
7	10296
8	102960
9	583440
10	11085360
11	3695120
12	254963280
13	1274816400
14	11473347600
15	332727080400
16	20629078984800
17	20629078984800
18	20629078984800
19	763275922437600
20	763275922437600
21	31294312819941600

[2, 12, 20, 40, 72, 792, 10296, 102960, 583440, 11085360, 3695120, 254963280, 1274816400, 11473347600, 332727080400, 20629078984800, 20629078984800, 20629078984800, 763275922437600, 763275922437600, 31294312819941600]

cp's OEIS Frontend

A145622 Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=7.

Table of values

List of values