A120301 - cp's OEIS frontend

A120301 Absolute value of numerator of the sum of all elements of the n X n matrix M with M[i,j] = (-1)^(i+j)*i/j for i,j = 1..n.

n	a(n)
1	1
2	1
3	5
4	7
5	47
6	37
7	319
8	533
9	1879
10	1627
11	20417
12	18107
13	263111
14	237371
15	52279
16	95549
17	1768477
18	1632341
19	167324635
20	155685007
21	166770367
22	156188887
23	3825136961
24	3602044091
25	19081066231
26	18051406831
27	57128792093
28	54260455193

[1, 1, 5, 7, 47, 37, 319, 533, 1879, 1627, 20417, 18107, 263111, 237371, 52279, 95549, 1768477, 1632341, 167324635, 155685007, 166770367, 156188887, 3825136961, 3602044091, 19081066231, 18051406831, 57128792093, 54260455193]

cp's OEIS Frontend

A120301 Absolute value of numerator of the sum of all elements of the n X n matrix M with M[i,j] = (-1)^(i+j)*i/j for i,j = 1..n.

Table of values

List of values