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A069456 Non-twin primes that are at least doubly lonely. 1
1039, 2099, 4253, 91121 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

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).

CROSSREFS

Cf. A007510, A069453.

Sequence in context: A065572 A074673 A020395 * A168412 A183742 A031129

Adjacent sequences:  A069453 A069454 A069455 * A069457 A069458 A069459

KEYWORD

nonn

AUTHOR

N. Fernandez (primeness(AT)borve.org), Mar 23 2002

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Last modified February 16 11:51 EST 2012. Contains 205908 sequences.