A189397 a(n) = n + [n*r/t] + [n*s/t]; r=1, s=1/sqrt(2), t=sqrt(3).

1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 22, 25, 27, 29, 31, 32, 35, 36, 39, 41, 42, 45, 46, 49, 51, 53, 55, 56, 59, 60, 63, 65, 66, 69, 70, 73, 74, 76, 79, 80, 83, 84, 86, 88, 90, 93, 94, 97, 98, 100, 103, 104, 107, 108, 110, 112, 114, 117, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 139, 142, 144, 146, 148, 150, 152, 154, 156, 158, 160, 162, 163, 166

Offset

1,2

Comments

See A189395.

Links

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

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*)

Crossrefs

Cf. A189395, A189396.

Sequence in context: A214657 A137803 A059533 * A172100 A064679 A081874

Adjacent sequences: A189394 A189395 A189396 * A189398 A189399 A189400

Keyword

nonn

Author

Clark Kimberling, Apr 21 2011

Status

approved