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

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Examples

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

Crossrefs

Cf. A078972, A115916.