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Search: id:A159256
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A159256 a(0)=131 ; for n>0, a(n)=a(n-1)+[sqrt a(n-1)] . +0
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131, 142, 153, 165, 177, 190, 203, 217, 231, 246, 261, 277, 293, 310, 327, 345, 363, 382, 401, 421, 441, 462, 483, 504, 526, 548, 571, 594, 618, 642, 667, 692, 718, 744, 771, 798, 826, 854, 883, 912, 942, 972, 1003, 1034, 1066, 1098, 1131, 1164, 1198 (list; graph; listen)
OFFSET

0,1

COMMENT

Row 10 in square array A159016 . This sequence contains an infinity of squares .

The squares are the form [21*2^n]^2 with a(n)=21*2^n (21,42,84,..) (From vincenzo.librandi(AT)tin.it) [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Apr 10 2009]

CROSSREFS

Cf. A159016, A002984

Sequence in context: A116519 A139646 A139970 this_sequence A039558 A045164 A134951

Adjacent sequences: A159253 A159254 A159255 this_sequence A159257 A159258 A159259

KEYWORD

nonn

AUTHOR

Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Apr 07 2009

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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