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A195129 a(n) = 2*n - floor(n*sqrt(1/3)). 2
0, 2, 3, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 19, 20, 22, 23, 25, 26, 28, 29, 30, 32, 33, 35, 36, 37, 39, 40, 42, 43, 45, 46, 47, 49, 50, 52, 53, 55, 56, 57, 59, 60, 62, 63, 65, 66, 67, 69, 70, 72, 73, 74, 76, 77, 79, 80, 82, 83, 84, 86, 87, 89, 90, 92, 93, 94, 96, 97, 99 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..10000

PROG

(MAGMA) [2*n-Floor(n*(Sqrt(1/3))): n in [0..70]]; // Vincenzo Librandi, Sep 12 2011

CROSSREFS

Sequence in context: A087057 A184580 A184622 * A167389 A288373 A087067

Adjacent sequences:  A195126 A195127 A195128 * A195130 A195131 A195132

KEYWORD

nonn

AUTHOR

Clark Kimberling, Sep 09 2011

STATUS

approved

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Last modified July 29 12:41 EDT 2021. Contains 346346 sequences. (Running on oeis4.)