A014214 a(n) = floor((Pi/2)^n).

1, 1, 2, 3, 6, 9, 15, 23, 37, 58, 91, 143, 225, 354, 556, 874, 1373, 2157, 3389, 5324, 8363, 13137, 20636, 32415, 50918, 79982, 125636, 197349, 309996, 486941, 764885, 1201479, 1887278, 2964530, 4656673, 7314686, 11489882, 18048264, 28350147, 44532308, 69951185, 109879065

Offset: 0

Author

Clark Kimberling

Keywords

• nonn

Crossrefs

Cf. A019669.

Programs

Mathematica

a[n_]:=Floor[(Pi/2)^n]; Array[a,42,0] (* Stefano Spezia, Jun 08 2025 *)

Extensions

a(38)-a(41) from Stefano Spezia, Jun 08 2025