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A051448 Sum of prime divisors of n (with multiplicity) is a square. +0
2
4, 14, 20, 24, 27, 39, 46, 55, 66, 94, 98, 140, 152, 155, 158, 168, 171, 183, 186, 189, 200, 203, 225, 240, 255, 256, 270, 272, 288, 290, 291, 295, 299, 306, 323, 324, 334, 344, 348, 354, 363, 387, 446, 455, 506, 539, 546, 578, 579, 583, 615, 650, 656, 695 (list; graph; listen)
OFFSET

0,1

EXAMPLE

a(2)=14 because 14=2*7 and 2+7=3^2

CROSSREFS

Sequence in context: A059007 A035401 A139330 this_sequence A075319 A030470 A165721

Adjacent sequences: A051445 A051446 A051447 this_sequence A051449 A051450 A051451

KEYWORD

easy,nonn

AUTHOR

Joe K. Crump (joecr(AT)carolina.rr.com)

EXTENSIONS

More terms from James A. Sellers (sellersj(AT)math.psu.edu), Sep 08 2000

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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