A064697 Numbers k such that A064696(k) = k-1.

2, 17, 19, 23, 29, 47, 59, 61, 97, 1019, 1021, 1033, 1051, 1063, 1087, 1091, 1153, 1193, 1223, 1229, 1291, 1297, 1301, 1429, 1433, 1487, 1531, 1553, 1567, 1607, 1621, 1663, 1697, 1709, 1741, 1777, 1783, 1811, 1823, 1847, 1861, 1873, 1979, 2017, 2029, 2063

Offset: 1

Author

Jonathan Ayres (jonathan.ayres(AT)btinternet.com), Oct 10 2001

Keywords

• nonn

Formula

It appears that all terms are primes.

Extensions

More terms from Sean A. Irvine, Jul 23 2023

Missing 1223 inserted by Sean A. Irvine, May 15 2024