A205005 The triangular number T(j) such that n divides T(k)-T(j)>0, where k is the least positive integer for which such a j exists.

1, 1, 3, 6, 1, 3, 3, 28, 1, 1, 10, 3, 15, 1, 6, 120, 28, 3, 36, 1, 15, 6, 55, 21, 3, 10, 1, 10, 91, 6, 105, 496, 3, 21, 1, 6, 153, 28, 6, 15, 190, 3, 210, 1, 10, 45, 253, 105, 6, 28, 15, 3, 325, 1, 36, 10, 21, 78, 406, 6

Offset

1,3

Comments

For a guide to related sequences, see A204892.

Links

Table of n, a(n) for n=1..60.

Mathematica

(See the program at A205002.)

Crossrefs

Cf. A204892, A205002.

Sequence in context: A347196 A091425 A369883 * A113648 A104612 A088392

Adjacent sequences: A205002 A205003 A205004 * A205006 A205007 A205008

Keyword

nonn

Author

Clark Kimberling, Jan 21 2012

Status

approved