A126038 Index where n first appears in A128333, or -1 if n never appears.

0, 1, 3, -1, 2, 15, -1, 4, 17, -1, 14, 6, -1, 11, 182, -1, 16, 8, -1, 21, 13, -1, 5, 145, -1, 18, 10, -1, 181, 23, -1, 349, 41, -1, 7, 147, -1, 178, 20, -1, 12, 346, -1, 183, 25, -1, 144, 56, -1, 188, 30, -1, 9, 149, -1, 48, 180, -1, 22, 317, -1, 141, 348, -1

Offset: 0

Author

Nick Hobson, Feb 28 2007

Keywords

• sign

Comments

Positive multiples of 3 never appear in A128333. Does every other number eventually appear there?

Crossrefs

Cf. A128333.