A353033 - cp's OEIS frontend

A353033 Numbers m such that tau(m) = 2 * tau(m - 1) and simultaneously sigma(m) = 2 * sigma(m - 1), where tau(k) = A000005(k) and sigma(k) = A000203(k).

n	a(n)
1	6
2	47796
3	111684
4	123498
5	224562
6	228378
7	384858
8	773016
9	1096824
10	1174542
11	2351240
12	2529414
13	3320472
14	3332616
15	3650376
16	4605096
17	4838838
18	4978476
19	5014842
20	5788662
21	6023928
22	6302724
23	7658024
24	8298978
25	9287240
26	9967974
27	10950024
28	12677496
29	14036694
30	14120360
31	14927990

[6, 47796, 111684, 123498, 224562, 228378, 384858, 773016, 1096824, 1174542, 2351240, 2529414, 3320472, 3332616, 3650376, 4605096, 4838838, 4978476, 5014842, 5788662, 6023928, 6302724, 7658024, 8298978, 9287240, 9967974, 10950024, 12677496, 14036694, 14120360, 14927990]

cp's OEIS Frontend

A353033 Numbers m such that tau(m) = 2 * tau(m - 1) and simultaneously sigma(m) = 2 * sigma(m - 1), where tau(k) = A000005(k) and sigma(k) = A000203(k).

Table of values

List of values