A189362 a(n) = n + floor(n*r/s) + floor(n*t/s); r=1, s=sqrt(2), t=sqrt(3).

2, 5, 8, 10, 14, 17, 19, 22, 26, 29, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 60, 63, 67, 69, 72, 75, 79, 81, 84, 87, 89, 93, 96, 99, 101, 105, 108, 110, 113, 116, 119, 122, 125, 128, 131, 134, 137, 139, 143, 146, 149, 151, 154, 158, 160, 163, 166, 170, 172, 175, 178, 180, 184, 187, 189, 192, 196, 199, 201, 204, 207, 210, 213, 216, 219, 222, 225, 228, 230, 233, 237, 239, 242, 245

Offset: 1

Author

Clark Kimberling, Apr 20 2011

Keywords

• nonn

Comments

See A189361.

Links

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

Crossrefs

Cf. A189361, A189363.

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}]  (*A189361*)
Table[b[n], {n, 1, 120}]  (*A189362*)
Table[c[n], {n, 1, 120}]  (*A189363*)