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A062320 Non square-free numbers squared. A013929(n)^2. +0
1
16, 64, 81, 144, 256, 324, 400, 576, 625, 729, 784, 1024, 1296, 1600, 1936, 2025, 2304, 2401, 2500, 2704, 2916, 3136, 3600, 3969, 4096, 4624, 5184, 5625, 5776, 6400, 6561, 7056, 7744, 8100, 8464, 9216, 9604, 9801, 10000, 10816, 11664, 12544, 13456 (list; graph; listen)
OFFSET

0,1

LINKS

Harry J. Smith, Table of n, a(n) for n=0,...,1000

PROGRAM

(PARI) for(n=1, 55, if(issquarefree(n), n+1, print(n^2)))

(PARI) { n=-1; for (m=1, 10^9, if (!issquarefree(m), write("b062320.txt", n++, " ", m^2); if (n==1000, break)); ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 04 2009]

CROSSREFS

Cf. A013929.

Sequence in context: A090567 A118902 A092210 this_sequence A117453 A039370 A129588

Adjacent sequences: A062317 A062318 A062319 this_sequence A062321 A062322 A062323

KEYWORD

easy,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Jul 05 2001

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), Jul 11 2001

page 1

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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