A115914 Numbers k such that k + sigma(k) is a brilliant number (A078972).

7, 17, 50, 71, 93, 117, 149, 187, 201, 217, 221, 247, 256, 263, 265, 327, 329, 371, 381, 383, 385, 389, 392, 401, 403, 413, 427, 449, 461, 485, 497, 503, 515, 525, 533, 543, 569, 605, 623, 635, 649, 667, 685, 701, 723, 763, 803, 821, 831, 835, 837, 839

Offset

1,1

Links

Table of n, a(n) for n=1..52.

Example

sigma(117) + 117 = 299 = 13*23.

Crossrefs

Cf. A078972, A115916.

Sequence in context: A221591 A045821 A262754 * A352616 A094534 A262106

Adjacent sequences: A115911 A115912 A115913 * A115915 A115916 A115917

Keyword

nonn,base

Author

Giovanni Resta, Feb 06 2006

Status

approved