A185935 - OEIS

A185935

Lesser of two consecutive primes which both equal 2 (mod 3).

23, 47, 53, 83, 131, 167, 173, 233, 251, 257, 263, 353, 383, 443, 467, 503, 509, 557, 563, 587, 593, 647, 653, 677, 797, 941, 947, 971, 977, 1013, 1097, 1103, 1181, 1187, 1217, 1223, 1259, 1283, 1307, 1361, 1367, 1433, 1493, 1499, 1511, 1553, 1601, 1613, 1709, 1811, 1889, 1901, 1907, 1913, 1973, 2063, 2069, 2099, 2207

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OFFSET

1,1

COMMENTS

Or, primes of the form 6k-1 such that the next larger prime is again of the form 6k'-1.

LINKS

Table of n, a(n) for n=1..59.

PROG

(PARI) forprime( p=1, 1e4, (o+0-o=p)%3==0 & p%3==2 & print1( precprime(p-1)", "))

CROSSREFS

Sequence in context: A109996 A188833 A121762 * A052159 A097361 A073025

Adjacent sequences: A185932 A185933 A185934 * A185936 A185937 A185938

KEYWORD

nonn

AUTHOR

M. F. Hasler, Feb 06 2011

STATUS

approved