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

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

Author

Vincenzo Librandi, Jun 30 2014

Keywords

• nonn
• easy

Comments

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]

Links

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

Crossrefs

Cf. A002489, A072631.

Programs

Magma

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

Mathematica

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