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1, 3, 5, 8, 12, 16, 20, 24, 29, 35, 41, 47, 53, 59, 65, 72, 80, 88, 96, 104, 112, 120, 128, 136, 145, 155, 165, 175, 185, 195, 205, 215, 225, 235, 245, 256, 268, 280, 292, 304, 316, 328, 340, 352, 364, 376, 388, 400, 413, 427, 441, 455, 469, 483, 497, 511
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| Nathaniel Johnston, Table of n, a(n) for n = 1..10000
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MAPLE
| A161339 := proc(n) option remember: local s: if(n=1)then return 1: fi: s:=sqrt(n): if(frac(s)=0)then return procname(n-1)+2*s-1: else return procname(n-1)+2*floor(s): fi: end: seq(A161339(n), n=1..60); # Nathaniel Johnston, May 06 2011
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CROSSREFS
| Cf. A000005, A000720, A018253, A160811, A160812, A161205.
Sequence in context: A045716 A122539 A023660 * A023562 A194207 A194176
Adjacent sequences: A161336 A161337 A161338 * A161340 A161341 A161342
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KEYWORD
| easy,nonn
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AUTHOR
| Omar E. Pol (info(AT)polprimos.com), Jun 19 2009
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