A205137 Least k such that n divides a difference between distinct pentagonal numbers when the differences are ordered as in A205136.

1, 1, 4, 1, 6, 8, 3, 15, 37, 6, 2, 19, 10, 25, 8, 15, 5, 37, 21, 24, 4, 28, 9, 19, 11, 75, 352, 30, 14, 8, 55, 231, 34, 7, 20, 37, 78, 150, 13, 24, 27, 53, 105, 95, 70, 12, 35, 19, 72, 11, 76, 98, 44, 380, 41, 30, 26, 18, 54, 103

Offset: 1

Author

Clark Kimberling, Jan 25 2012

Keywords

• nonn

Comments

For a guide to related sequences, see A204892.

Crossrefs

Cf. A205138, A204892.

Programs

Mathematica

(See the program at A205138.)