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Search: id:A115915
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A115915 Numbers n such that n+phi(n) is a brilliant number (A078972). +0
2
4, 5, 9, 10, 11, 13, 61, 87, 127, 181, 241, 253, 265, 287, 295, 321, 323, 349, 361, 363, 377, 397, 407, 409, 421, 451, 457, 473, 481, 485, 511, 515, 527, 537, 541, 581, 595, 631, 635, 671, 695, 705, 721, 731, 751, 757, 763, 769, 793, 805, 807, 843, 851, 867 (list; graph; listen)
OFFSET

1,1

EXAMPLE

295+phi(295)=527=17*31.

CROSSREFS

Cf. A078972, A115916.

Sequence in context: A030415 A120516 A116026 this_sequence A007536 A064801 A109825

Adjacent sequences: A115912 A115913 A115914 this_sequence A115916 A115917 A115918

KEYWORD

nonn,base

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006

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Last modified November 27 14:34 EST 2009. Contains 167570 sequences.


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