A159258 a(0)=155; for n > 0, a(n) = a(n-1) + floor(sqrt(a(n-1))).

155, 167, 179, 192, 205, 219, 233, 248, 263, 279, 295, 312, 329, 347, 365, 384, 403, 423, 443, 464, 485, 507, 529, 552, 575, 598, 622, 646, 671, 696, 722, 748, 775, 802, 830, 858, 887, 916, 946, 976, 1007, 1038, 1070, 1102, 1135, 1168, 1202, 1236, 1271, 1306

Offset

0,1

Comments

Row 11 of square array in A159016. This sequence contains infinitely many squares.

Links

G. C. Greubel, Table of n, a(n) for n = 0..5000

Mathematica

RecurrenceTable[{a[n]==a[n-1] + Floor[Sqrt[a[n-1]]], a[0] == 155}, a, {n, 0, 50}] (* G. C. Greubel, Jun 28 2018 *)

Crossrefs

Sequence in context: A200709 A368138 A248657 * A214472 A259379 A122475

Adjacent sequences: A159255 A159256 A159257 * A159259 A159260 A159261

Keyword

nonn

Author

Philippe Deléham, Apr 07 2009

Status

approved