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

1,4

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

Mathematica

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

Prog

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

Crossrefs

Cf. A002489, A072631.

Sequence in context: A078050 A134271 A094403 * A363062 A316987 A228885

Adjacent sequences: A244337 A244338 A244339 * A244341 A244342 A244343

Keyword

nonn,easy

Author

Vincenzo Librandi, Jun 30 2014

Status

approved