A102475 a(n) = floor(Pi^(n/2)).

1, 1, 3, 5, 9, 17, 31, 54, 97, 172, 306, 542, 961, 1704, 3020, 5353, 9488, 16817, 29809, 52835, 93648, 165986, 294204, 521463, 924269, 1638224, 2903677, 5146633, 9122171, 16168627, 28658145, 50795241, 90032220, 159577956, 282844563, 501328935, 888582403

Offset: 0

Author

Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Feb 24 2005

Keywords

• nonn

Crossrefs

Cf. A000796, A102477.

Programs

Mathematica

Floor[Pi^(Range[0,40]/2)] (* Harvey P. Dale, Aug 27 2012 *)

Extensions

a(0)=1 prepended by Alois P. Heinz, Feb 27 2019