A287691 - cp's OEIS frontend

A287691 Triangle read by rows: T(n,k) (0 <= k <= n) is the number of squarefree numbers A002110(n) <= m <= (A002110(n+1)-1) such that A001221(m) = n and m is divisible by A002110(k).

n	a(n)
0	1
1	2
2	1
3	2
4	4
5	1
6	3
7	7
8	8
9	1
10	5
11	12
12	23
13	17
14	1
15	6
16	16
17	44
18	56
19	29
20	1
21	9
22	24
23	78
24	130
25	139
26	41
27	1
28	9
29	30
30	107
31	214
32	351
33	224
34	59
35	1
36	11
37	39
38	154
39	332
40	707
41	650
42	389
43	76
44	1
45	17
46	64
47	261
48	598
49	1475
50	1637
51	1489
52	640
53	112
54	1
55	21
56	82
57	378
58	902
59	2496
60	3155
61	3782

[1, 2, 1, 2, 4, 1, 3, 7, 8, 1, 5, 12, 23, 17, 1, 6, 16, 44, 56, 29, 1, 9, 24, 78, 130, 139, 41, 1, 9, 30, 107, 214, 351, 224, 59, 1, 11, 39, 154, 332, 707, 650, 389, 76, 1, 17, 64, 261, 598, 1475, 1637, 1489, 640, 112, 1, 21, 82, 378, 902, 2496, 3155, 3782]

cp's OEIS Frontend

A287691 Triangle read by rows: T(n,k) (0 <= k <= n) is the number of squarefree numbers A002110(n) <= m <= (A002110(n+1)-1) such that A001221(m) = n and m is divisible by A002110(k).

Table of values

List of values