A162283 Numbers n with the same value for sigma_0(n) and sigma(n) as some other number.

14, 15, 33, 35, 46, 51, 54, 55, 56, 62, 66, 69, 70, 77, 87, 94, 95, 102, 110, 114, 115, 118, 119, 123, 132, 135, 138, 140, 141, 142, 143, 145, 154, 155, 158, 159, 161, 165, 166, 174, 177, 182, 184, 186, 187, 190, 195, 203, 204, 205, 209, 213, 214, 220, 221, 224

Offset

1,1

Comments

Includes all values in A162279 and A162280, as well as other numbers with sigma_0 and sigma value matching one of these.

Values in this sequence are sorted directly, not by sigma(n).

Links

Table of n, a(n) for n=1..56.

Franklin T. Adams-Watters, Table of duplicate sigma values up to sigma(n) = 10000

Crossrefs

Cf. A000005, A000203, A162279, A162280.

Sequence in context: A216679 A216680 A332736 * A180328 A211144 A213386

Adjacent sequences: A162280 A162281 A162282 * A162284 A162285 A162286

Keyword

nonn

Author

Franklin T. Adams-Watters, Jun 29 2009

Status

approved