A184873 n+floor(nr/t)+floor(ns/t), where r=log(2), s=log(3), t=log(5).

1, 3, 6, 7, 10, 12, 14, 16, 18, 20, 22, 25, 26, 29, 31, 32, 35, 37, 39, 41, 44, 46, 47, 50, 52, 54, 56, 59, 60, 62, 65, 66, 69, 71, 73, 75, 77, 79, 81, 84, 85, 88, 90, 92, 94, 96, 99, 100, 103, 105, 106, 109, 111, 113, 115, 118, 119, 121, 124, 125, 128, 130, 133, 134, 136, 139, 140, 143, 145, 147, 149, 152, 153, 155, 158, 159, 162, 164, 166, 168, 170, 172, 174, 177, 179, 181, 183, 185, 187, 189, 192, 193, 196, 198, 199, 202, 204, 206, 208, 211, 212, 214, 217, 218, 221, 223, 226, 227, 229, 232, 233, 236, 238, 240, 242, 244, 246, 248, 251, 252

Offset

1,2

Comments

See A184812.

Links

Table of n, a(n) for n=1..120.

Mathematica

r=Log[2]; s=Log[3]; t=Log[5];
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}]  (* A184871 *)
Table[b[n], {n, 1, 120}]  (* A184872 *)
Table[c[n], {n, 1, 120}]  (* A184873 *)

Crossrefs

Cf. A184871, A184872, A184876 (primes in A184873).

Sequence in context: A289009 A084463 A096604 * A184903 A330180 A330184

Adjacent sequences: A184870 A184871 A184872 * A184874 A184875 A184876

Keyword

nonn

Author

Clark Kimberling, Jan 23 2011

Extensions

Name corrected by Harvey P. Dale, Jan. 26 2011

Status

approved