A031886 Lucky numbers with size of gaps equal to 4 (lower terms).

3, 9, 21, 33, 63, 69, 75, 111, 129, 159, 189, 201, 219, 231, 237, 285, 303, 327, 357, 429, 483, 537, 579, 615, 639, 651, 723, 735, 741, 777, 801, 819, 927, 933, 957, 975, 993, 1053, 1101, 1179, 1197, 1245, 1281, 1365, 1455, 1491, 1497, 1563

Offset: 1

Author

Patrick De Geest

Keywords

• nonn

Comments

This is to lucky numbers (A000959) as smaller member p of cousin prime pairs (A023200) is to primes (A000040). - Jonathan Vos Post, May 08 2007

Links

• Amiram Eldar, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A000959.

Cf. A000040, A023200.