A119948 - cp's OEIS frontend

A119948 Triangle of denominators in the square of the matrix with A[i,j] = 1/i for j <= i, 0 otherwise.

n	a(n)
1	1
2	4
3	4
4	18
5	18
6	9
7	48
8	48
9	48
10	16
11	300
12	300
13	300
14	100
15	25
16	120
17	120
18	120
19	360
20	180
21	36
22	980
23	980
24	980
25	2940
26	1470
27	294
28	49
29	2240
30	2240
31	2240
32	6720
33	6720
34	1344
35	448
36	64
37	22680
38	22680
39	22680
40	22680
41	22680
42	4536

[1, 4, 4, 18, 18, 9, 48, 48, 48, 16, 300, 300, 300, 100, 25, 120, 120, 120, 360, 180, 36, 980, 980, 980, 2940, 1470, 294, 49, 2240, 2240, 2240, 6720, 6720, 1344, 448, 64, 22680, 22680, 22680, 22680, 22680, 4536]

cp's OEIS Frontend

A119948 Triangle of denominators in the square of the matrix with A[i,j] = 1/i for j <= i, 0 otherwise.

Table of values

List of values