A024562 a(n) = integer nearest a(n-1)/(sqrt(6) - 2), where a(0) = 1.

1, 2, 4, 9, 20, 44, 98, 218, 485, 1079, 2400, 5339, 11878, 26426, 58791, 130795, 290986, 647370, 1440233, 3204151, 7128419, 15858914, 35282038, 78493533, 174628085, 388502937, 864319917, 1922891303, 4277942565, 9517330782, 21173632847

Offset

0,2

Links

Clark Kimberling, Table of n, a(n) for n = 0..1000

Mathematica

With[{c = Sqrt[6] - 2}, NestList[Round[#/c] &, 1, 40]] (* _Harvey P.Dale_, Feb 24 2011 *)

Crossrefs

Sequence in context: A141016 A008998 A024736 * A087219 A214952 A360871

Adjacent sequences: A024559 A024560 A024561 * A024563 A024564 A024565

Keyword

nonn

Author

Clark Kimberling

Status

approved