A179241 Powers of sqrt(5) - 1 rounded down.

1, 1, 1, 2, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 24, 29, 36, 45, 56, 69, 85, 105, 130, 161, 200, 247, 305, 377, 466, 577, 713, 881, 1089, 1347, 1665, 2058, 2544, 3144, 3887, 4805, 5939, 7341, 9074, 11216, 13864, 17137, 21183, 26183, 32364, 40005, 49449, 61122

Offset: 1

Author

Roland Schroeder (florola(AT)gmx.de), Jul 05 2010

Keywords

• nonn
• easy

Programs

Mathematica

Array[Floor[(Sqrt@5 - 1)^# ] &, 51] (* Robert G. Wilson v, Jul 12 2010 *)

Formula

a(n) = floor((sqrt(5)-1)^n).

Extensions

More terms from Vincenzo Librandi and Robert G. Wilson v, Jul 09 2010