A190083 - OEIS

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A190083

n + [n*r/s] + [n*t/s]; r=1, s=sin(2*Pi/5), t=csc(2*Pi/5).

3, 6, 9, 12, 15, 18, 21, 24, 27, 31, 34, 37, 40, 43, 46, 49, 52, 55, 59, 63, 66, 69, 72, 75, 78, 81, 84, 87, 91, 94, 97, 100, 103, 106, 109, 112, 115, 119, 123, 126, 129, 132, 135, 138, 141, 144, 147, 151, 154, 157, 160, 163, 166, 169, 172, 175, 179, 182, 186, 189, 192, 195, 198, 201, 204, 207, 211, 214, 217, 220, 223, 226, 229, 232, 235

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

See A190082.

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

FORMULA

(See A190082.)

MATHEMATICA

r=1; s=Sin[2*Pi/5]; t=Csc[2*Pi/5];

a[n_] := n + Floor[n*s/r] + Floor[n*t/r];