A341858 - cp's OEIS frontend

A341858 Numbers k such that psi(k^2) = k, psi = A002322; indices of 1 in A341857.

n	a(n)
1	1
2	2
3	4
4	6
5	12
6	20
7	42
8	60
9	84
10	156
11	220
12	420
13	660
14	780
15	1092
16	1806
17	1860
18	2436
19	3612
20	3660
21	4620
22	5060
23	5460
24	8268
25	8580
26	12180
27	12324
28	13020
29	15180
30	18060
31	20460
32	24180
33	24492
34	25620
35	29820
36	31668
37	40260
38	41340
39	44220
40	46956
41	47580
42	57876
43	60060
44	61620
45	86268
46	88620

[1, 2, 4, 6, 12, 20, 42, 60, 84, 156, 220, 420, 660, 780, 1092, 1806, 1860, 2436, 3612, 3660, 4620, 5060, 5460, 8268, 8580, 12180, 12324, 13020, 15180, 18060, 20460, 24180, 24492, 25620, 29820, 31668, 40260, 41340, 44220, 46956, 47580, 57876, 60060, 61620, 86268, 88620]

cp's OEIS Frontend

A341858 Numbers k such that psi(k^2) = k, psi = A002322; indices of 1 in A341857.

Table of values

List of values