A072631 -id:A072631 - cp's OEIS frontend

A072632 Solutions to A072631[n]=0.

1, 3, 8, 21, 55, 149, 404, 1097, 2981, 8104, 22027, 59875, 162755, 442414, 1202605, 3269018

Offset: 1

Labos Elemer, Jun 28 2002

Essentially the same as A001671.

			Compare with A072610 [related to A004648].

Cf. A004648, A072608, A072609, A072610, A072630, A072631, A072610.

Do[s=Floor[Mod[Floor[n*Log[n]]//N, n]]; If[s==0, Print[n]], {n, 1, 10000000}]

A244340 Floor( n^2*log(n) ) mod n.

Original entry on oeis.org

0, 0, 0, 2, 0, 4, 4, 5, 6, 0, 4, 9, 4, 13, 9, 5, 2, 0, 17, 18, 19, 0, 2, 6, 11, 18, 26, 8, 18, 1, 14, 28, 12, 30, 15, 0, 22, 8, 34, 22, 10, 41, 31, 22, 13, 5, 44, 39, 34, 30, 26, 24, 22, 21, 22, 23, 25, 29, 33, 39, 46, 54, 1, 10, 21, 34, 47, 63, 10, 27, 46

Offset: 1

Vincenzo Librandi, Jun 30 2014

n for which a(n) is 0: 1, 2, 3, 5, 10, 18, 22, 36, 88, 92, 176, 235, 844, 1481, 1713, 7098, 8140, 19848, ... [Bruno Berselli, Jun 30 2014]

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Cf. A002489, A072631.

[Floor(n^2*Log(n)) mod n: n in [1..100]];

Table[Floor[Mod[n^2 Log[n], n]], {n, 100}]

cp's OEIS Frontend

A072632 Solutions to A072631[n]=0.

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