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A085265 Numbers that can be written as sum of a positive squarefree number and a positive square. 5
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Subsequence of A011760; A085263(a(n))>0.

Conjecture: a(n) = n + 2 for n > 11. That is, only 1 and 13 are missing. [Charles R Greathouse IV, Aug 21 2011]

LINKS

Eric Weisstein's World of Mathematics, Square Numbers.

Eric Weisstein's World of Mathematics, Squarefree

CROSSREFS

Sequence in context: A191431 A191430 A011760 * A180004 A172270 A023806

Adjacent sequences:  A085262 A085263 A085264 * A085266 A085267 A085268

KEYWORD

nonn,easy

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 23 2003

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Last modified February 14 14:07 EST 2012. Contains 205623 sequences.