A202308 a(n) = floor(sqrt(13*n)).
0, 3, 5, 6, 7, 8, 8, 9, 10, 10, 11, 11, 12, 13, 13, 13, 14, 14, 15, 15, 16, 16, 16, 17, 17, 18, 18, 18, 19, 19, 19, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 23, 23, 23, 23, 24, 24, 24, 24, 25, 25, 25, 26, 26, 26, 26, 26, 27, 27, 27, 27, 28, 28, 28, 28, 29, 29
Offset: 0
Links
- Vincenzo Librandi, Table of n, a(n) for n = 0..10000
Programs
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Magma
[Floor(Sqrt(13*n)) : n in [0..80]];
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Mathematica
Table[Floor[Sqrt[13n]],{n,0,80}] -
PARI
sqrtint(13*n) \\ Charles R Greathouse IV, Jan 17 2012
Formula
a(n) = A000196(13*n).