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A014214
a(n) = floor((Pi/2)^n).
1
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
0,3
MATHEMATICA
a[n_]:=Floor[(Pi/2)^n]; Array[a, 42, 0] (* Stefano Spezia, Jun 08 2025 *)
CROSSREFS
Cf. A019669.
Sequence in context: A326470 A326595 A217067 * A094993 A365071 A192671
KEYWORD
nonn
EXTENSIONS
a(38)-a(41) from Stefano Spezia, Jun 08 2025
STATUS
approved