A014122 Numbers of form |2^i +- 3^j|.

0, 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 25, 26, 28, 29, 31, 33, 35, 37, 41, 43, 47, 49, 55, 59, 61, 63, 65, 67, 73, 77, 79, 80, 82, 83, 85, 89, 91, 97, 101, 113, 115, 119, 125, 127, 129, 131, 137, 139, 145, 155, 175, 179, 209, 211, 217, 227

Offset: 1

Author

Richard C. Schroeppel

Keywords

• nonn

Comments

Based on checking i <= 100 and j <= 60.

Existing sequence correct for j <= 200000. - Sean A. Irvine, Oct 04 2018

2*k is a term iff 2*k = 3^j +- 1. - Sean A. Irvine, Oct 04 2018

Existing sequence correct for j <= 10^6. - David A. Corneth, Oct 04 2018

3*k is a term iff 3*k = 2^j +- 1. - Jon E. Schoenfield, Oct 04 2018

Crossrefs

Cf. A014121, A056850.

Extensions

Constraint on search moved from title to comments by Sean A. Irvine, Oct 04 2018