A031885 Lucky numbers with smallest increasing gaps (upper terms).

3, 7, 21, 87, 151, 63, 801, 511, 189, 957, 925, 769, 2877, 1639, 1087, 3843, 5803, 4929, 8757, 10723, 9883, 24117, 9613, 28293, 25737, 3559, 26997, 35799, 44863, 52039, 64785, 23269, 50845, 51543, 264145, 155905, 238131, 178831, 143389, 400671, 223177, 181665

Offset: 1

Author

Patrick De Geest

Keywords

• nonn

Crossrefs

Cf. A000959, A031884.

Extensions

a(27) corrected and more terms from Sean A. Irvine, May 03 2020