1,3
P. Ribenboim, The Little Book of Bigger Primes, Springer-Verlag NY 2004.
Cf. A006560, A005115, A093364.
Sequence in context: A127797 A077634 A095198 this_sequence A128040 A006954 A090801
Adjacent sequences: A126986 A126987 A126988 this_sequence A126990 A126991 A126992
nonn
Artur Jasinski (grafix(AT)csl.pl), Jan 01 2007
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