A156056 n-th triangular number modulo n-th prime.

1, 0, 1, 3, 4, 8, 11, 17, 22, 26, 4, 4, 9, 19, 26, 30, 35, 49, 56, 68, 12, 16, 27, 33, 34, 48, 69, 85, 108, 13, 115, 4, 13, 39, 34, 62, 75, 89, 112, 128, 145, 179, 182, 25, 50, 86, 73, 61, 90, 130, 161, 183, 226, 230, 255, 18, 39, 85, 108, 144, 193, 195, 174, 214, 267, 309

Offset

1,4

Links

Table of n, a(n) for n=1..66.

Mathematica

Table[Mod[n(n + 1)/2, Prime[n]], {n, 100}]

Crossrefs

Sequence in context: A217755 A133363 A186423 * A236453 A099108 A208971

Adjacent sequences: A156053 A156054 A156055 * A156057 A156058 A156059

Keyword

nonn

Author

Zak Seidov, Oct 31 2009

Status

approved