A144630 - cp's OEIS frontend

A144630 Triangle read by rows: T(n,k) (1 <= k <= n) is the sum of the entries in the lower right k X k submatrix of the n X n inverse Hilbert matrix.

n	a(n)
1	1
2	12
3	4
4	180
5	12
6	9
7	2800
8	880
9	40
10	16
11	44100
12	46900
13	4480
14	40
15	25
16	698544
17	1615824
18	411264
19	13104
20	84
21	36
22	11099088
23	45094896
24	23653476
25	2268756
26	36036
27	84
28	49
29	176679360
30	1115345088
31	1017615456
32	207193536
33	9660816
34	79776
35	144
36	64

[1, 12, 4, 180, 12, 9, 2800, 880, 40, 16, 44100, 46900, 4480, 40, 25, 698544, 1615824, 411264, 13104, 84, 36, 11099088, 45094896, 23653476, 2268756, 36036, 84, 49, 176679360, 1115345088, 1017615456, 207193536, 9660816, 79776, 144, 64]

cp's OEIS Frontend

A144630 Triangle read by rows: T(n,k) (1 <= k <= n) is the sum of the entries in the lower right k X k submatrix of the n X n inverse Hilbert matrix.

Table of values

List of values