A320051 - cp's OEIS frontend

A320051 Square array read by antidiagonals upwards: T(n,k) is the n-th positive integer with exactly k middle divisors, n >= 1, k >= 0.

n	a(n)
1	3
2	5
3	1
4	7
5	2
6	6
7	10
8	4
9	12
10	72
11	11
12	8
13	15
14	144
15	120
16	13
17	9
18	20
19	288
20	180
21	1800
22	14
23	16
24	24
25	400
26	240
27	3528
28	840
29	17
30	18
31	28
32	450
33	252
34	4050
35	1080
36	3600
37	19
38	25
39	30
40	576
41	336
42	5184
43	1260
44	7200
45	2520
46	21
47	32
48	35
49	648
50	360
51	7056
52	1440
53	14112
54	5040
55	28800
56	22
57	36
58	40
59	800
60	378
61	8100
62	1680
63	14400
64	5544

[3, 5, 1, 7, 2, 6, 10, 4, 12, 72, 11, 8, 15, 144, 120, 13, 9, 20, 288, 180, 1800, 14, 16, 24, 400, 240, 3528, 840, 17, 18, 28, 450, 252, 4050, 1080, 3600, 19, 25, 30, 576, 336, 5184, 1260, 7200, 2520, 21, 32, 35, 648, 360, 7056, 1440, 14112, 5040, 28800, 22, 36, 40, 800, 378, 8100, 1680, 14400, 5544]

cp's OEIS Frontend

A320051 Square array read by antidiagonals upwards: T(n,k) is the n-th positive integer with exactly k middle divisors, n >= 1, k >= 0.

Table of values

List of values