A052086 Primes with at least one of the decimal digits occurring separated.
101, 131, 151, 181, 191, 313, 353, 373, 383, 727, 757, 787, 797, 919, 929, 1013, 1019, 1021, 1031, 1051, 1061, 1091, 1151, 1171, 1181, 1201, 1213, 1217, 1231, 1291, 1301, 1303, 1319, 1321, 1361, 1373, 1381, 1451, 1471, 1481, 1511, 1531, 1571, 1601, 1613
Offset: 1
Examples
1471 is a term since the two digits 1 are separated by the substring 47. Prime 277 is not a term since the only repeated digits (77) are grouped.
Extensions
Offset changed to 1 by Jon E. Schoenfield, Oct 17 2019
Comments