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A159023
a(0)=41; a(n) = a(n-1) + floor(sqrt(a(n-1))), n > 0.
0
41, 47, 53, 60, 67, 75, 83, 92, 101, 111, 121, 132, 143, 154, 166, 178, 191, 204, 218, 232, 247, 262, 278, 294, 311, 328, 346, 364, 383, 402, 422, 442, 463, 484, 506, 528, 550, 573, 596, 620, 644, 669, 694, 720, 746, 773, 800, 828, 856, 885, 914, 944, 974, 1005, 1036
OFFSET
0,1
COMMENTS
Row 5 in square array A159016.
This sequence contains infinitely many squares. - Philippe Deléham, Apr 04 2009
MATHEMATICA
NestList[#+Floor[Sqrt[#]]&, 41, 60] (* Harvey P. Dale, Nov 06 2011 *)
CROSSREFS
Sequence in context: A106414 A068582 A158847 * A136294 A180547 A329446
KEYWORD
nonn
AUTHOR
Philippe Deléham, Apr 02 2009
EXTENSIONS
More terms from Vincenzo Librandi, Apr 10 2009
Error in sequence corrected by Jon E. Schoenfield, Jun 23 2010
STATUS
approved