A145609 - cp's OEIS frontend

A145609 Numerator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=1.

n	a(n)
1	3
2	25
3	49
4	761
5	7381
6	86021
7	1171733
8	2436559
9	14274301
10	55835135
11	19093197
12	1347822955
13	34395742267
14	315404588903
15	9304682830147
16	586061125622639
17	54062195834749
18	54801925434709
19	2053580969474233
20	2078178381193813

[3, 25, 49, 761, 7381, 86021, 1171733, 2436559, 14274301, 55835135, 19093197, 1347822955, 34395742267, 315404588903, 9304682830147, 586061125622639, 54062195834749, 54801925434709, 2053580969474233, 2078178381193813]

cp's OEIS Frontend

A145609 Numerator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=1.

Table of values

List of values