A189470 - OEIS

A189470

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

2, 4, 7, 9, 12, 14, 16, 20, 22, 25, 27, 29, 32, 34, 37, 40, 43, 45, 47, 50, 52, 55, 58, 60, 63, 65, 68, 70, 73, 75, 78, 81, 83, 86, 88, 90, 93, 96, 99, 101, 103, 106, 108, 111, 113, 117, 119, 121, 124, 126, 129, 131, 133, 137, 139, 142, 144, 147, 149, 151, 155, 157, 160, 162, 164, 167, 169, 172, 175, 177, 180, 182, 185, 187, 190, 193, 195, 198, 200, 203, 205, 207, 210, 213

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OFFSET

1,1

COMMENTS

See A189469.

LINKS

Ivan Panchenko, Table of n, a(n) for n = 1..10000

MATHEMATICA

r=1; s=1+Sqrt[2]; t=1+Sqrt[3];

f[n_]:= n + Floor[n*s/r] + Floor[n*t/r];

g[n_]:= n + Floor[n*r/s] + Floor[n*t/s];

h[n_]:= n + Floor[n*r/t] + Floor[n*s/t];