A295644 - cp's OEIS frontend

A295644 Rectangular array, by antidiagonals; row 1 is the ordered list of all k having at most 2 unitary divisors; for n > 1, row n is the ordered list of all k having 2^n unitary divisors.

n	a(n)
1	1
2	2
3	6
4	3
5	10
6	30
7	4
8	12
9	42
10	210
11	5
12	14
13	60
14	330
15	2310
16	7
17	15
18	66
19	390
20	2730
21	30030
22	8
23	18
24	70
25	420
26	3570
27	39270
28	510510
29	9
30	20
31	78
32	462
33	3990
34	43890
35	570570

[1, 2, 6, 3, 10, 30, 4, 12, 42, 210, 5, 14, 60, 330, 2310, 7, 15, 66, 390, 2730, 30030, 8, 18, 70, 420, 3570, 39270, 510510, 9, 20, 78, 462, 3990, 43890, 570570]

cp's OEIS Frontend

A295644 Rectangular array, by antidiagonals; row 1 is the ordered list of all k having at most 2 unitary divisors; for n > 1, row n is the ordered list of all k having 2^n unitary divisors.

Table of values

List of values