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A124809 Numbers of the form (square + 1) that are not squarefree. 4
50, 325, 1025, 1445, 1682, 1850, 3250, 4625, 4901, 6725, 8650, 9802, 11450, 13690, 13925, 17425, 20450, 24650, 28225, 33125, 37250, 42850, 47525, 53825, 57122, 59050, 63002, 66050, 71825, 79525, 85850, 94250, 101125, 106930, 110225, 117650 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

a(n) = A049532(n)^2 + 1.

CROSSREFS

Cf. A002522, A013929, A069987.

Sequence in context: A205620 A183698 A183690 * A184564 A184556 A031420

Adjacent sequences:  A124806 A124807 A124808 * A124810 A124811 A124812

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 08 2006

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Last modified February 13 03:07 EST 2012. Contains 205435 sequences.