A307540 - cp's OEIS frontend

A307540 Irregular triangle T(n,k) such that squarefree m with gpf(m) = prime(n) in each row are arranged according to increasing values of phi(m)/m.

n	a(n)
0	1
1	2
2	6
3	3
4	30
5	10
6	15
7	5
8	210
9	42
10	70
11	14
12	105
13	21
14	35
15	7
16	2310
17	330
18	462
19	66
20	770
21	110
22	154
23	1155
24	22
25	165
26	231
27	33
28	385
29	55
30	77
31	11
32	30030
33	2730
34	4290
35	6006
36	390
37	546
38	858
39	10010
40	78
41	910
42	1430
43	2002
44	130
45	15015
46	182
47	286
48	1365
49	2145
50	26
51	3003
52	195
53	273
54	429

[1, 2, 6, 3, 30, 10, 15, 5, 210, 42, 70, 14, 105, 21, 35, 7, 2310, 330, 462, 66, 770, 110, 154, 1155, 22, 165, 231, 33, 385, 55, 77, 11, 30030, 2730, 4290, 6006, 390, 546, 858, 10010, 78, 910, 1430, 2002, 130, 15015, 182, 286, 1365, 2145, 26, 3003, 195, 273, 429]

cp's OEIS Frontend

A307540 Irregular triangle T(n,k) such that squarefree m with gpf(m) = prime(n) in each row are arranged according to increasing values of phi(m)/m.

Table of values

List of values