A190086 - OEIS

A190086

a(n) = n + [n*r/s] + [n*t/s]; r=1, s=sin(1/2), t=cos(1/2).

4, 9, 14, 19, 24, 28, 33, 38, 43, 48, 53, 58, 63, 68, 73, 78, 83, 87, 92, 97, 102, 107, 112, 117, 122, 127, 132, 137, 142, 146, 151, 156, 161, 166, 172, 176, 181, 186, 191, 196, 201, 205, 210, 215, 220, 225, 231, 235, 240, 245, 250, 255, 260, 264, 269, 274, 279, 284, 289, 294, 299, 304, 309, 314, 318, 323, 328, 333, 338, 344, 348

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

OFFSET

1,1

COMMENTS

See A190085.

LINKS

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

FORMULA

A190085: f(n) = n + [n*sin(1/2)] + [n*cos(1/2)].

A190086: g(n) = n + [n*csc(1/2)] + [n*cot(1/2)], this sequence.

A190087: h(n) = n + [n*sec(1/2)] + [n*tan(1/2)].

MATHEMATICA