1,1
These are non-twin primes sandwiched between at least 2 pairs of twins on each side. The first number in the sequence is 1039 (sandwiched between 1019,1021,1031,1033 and 1049,1051,1061,1063).
Cf. A007510, A069453.
Sequence in context: A065572 A074673 A020395 * A168412 A183742 A031129
Adjacent sequences: A069453 A069454 A069455 * A069457 A069458 A069459
nonn
N. Fernandez (primeness(AT)borve.org), Mar 23 2002