A162331 Numbers k such that k^2 is an anagram of a pronic number.

18, 24, 33, 39, 48, 51, 75, 78, 90, 99, 144, 153, 162, 171, 174, 189, 195, 198, 243, 249, 252, 267, 270, 303, 315, 318, 327, 330, 336, 345, 348, 360, 375, 399, 405, 411, 420, 432, 450, 453, 456, 468, 474, 477, 483, 489, 492, 495, 504, 516, 525, 531, 534, 540

Offset

1,1

Comments

24 is in the sequence because 24^2 = 576 and 576 is an anagram of 756 = 27 * 28.

48 is in the sequence because 48^2 = 2304 and 2304 is an anagram of 4032 = 63 * 64.

Links

Table of n, a(n) for n=1..54.

Crossrefs

Cf. A000290, A002378.

Sequence in context: A179014 A105093 A334015 * A092536 A214620 A360768

Adjacent sequences: A162328 A162329 A162330 * A162332 A162333 A162334

Keyword

nonn,base

Author

Claudio Meller, Jul 01 2009

Status

approved