A189396 a(n) = n + [n*r/s] + [n*t/s]; r=1, s=1/sqrt(2), t=sqrt(3).

4, 8, 14, 18, 24, 28, 33, 38, 43, 48, 52, 57, 62, 67, 72, 77, 82, 87, 91, 96, 101, 106, 111, 115, 121, 125, 131, 135, 141, 145, 149, 155, 159, 165, 169, 174, 179, 184, 189, 193, 198, 203, 208, 213, 218, 223, 228, 232, 238, 242, 247, 252, 256, 262, 266, 272, 276, 282, 286, 290, 296, 300, 306, 310, 315, 320, 325, 330, 335, 339, 344, 349, 354, 359, 364, 369, 373, 379, 383, 388, 393, 397, 403

Offset: 1

Author

Clark Kimberling, Apr 21 2011

Keywords

• nonn

Comments

See A189395.

Links

• G. C. Greubel, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A189395, A189397.

Programs

Mathematica

r=1; s=2^(-1/2); t=3^(1/2);
a[n_] := n + Floor[n*s/r] + Floor[n*t/r];
b[n_] := n + Floor[n*r/s] + Floor[n*t/s];
c[n_] := n + Floor[n*r/t] + Floor[n*s/t]
Table[a[n], {n, 1, 120}]  (*A189395*)
Table[b[n], {n, 1, 120}]  (*A189396*)
Table[c[n], {n, 1, 120}]  (*A189397*)