A057701 Twin lucky numbers: (n,m) are lucky numbers with |n-m|=2.
1, 3, 7, 9, 13, 15, 31, 33, 49, 51, 67, 69, 73, 75, 127, 129, 133, 135, 169, 171, 193, 195, 235, 237, 259, 261, 283, 285, 319, 321, 391, 393, 427, 429, 475, 477, 487, 489, 517, 519, 535, 537, 577, 579, 613, 615, 619, 621, 643, 645, 727, 729, 739, 741, 883, 885
Offset: 1
Links
- Amiram Eldar, Table of n, a(n) for n = 1..10000
Crossrefs
Cf. A000959.
Extensions
Offset corrected by Amiram Eldar, Nov 18 2019