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 A085516 Order of first occurrence of a sequence of exactly n consecutive primes of the form 6*k-1. 2
 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 11, 13, 15, 14, 16, 18, 20, 17, 22, 19, 21, 25, 23, 24, 27, 26, 28, 29, 30, 31, 32, 35, 33, 34 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS This sequence gives the index of A055626(n) after sorting by increasing magnitude. LINKS J. K. Andersen, Consecutive Congruent Primes. Hugo Pfoertner, Record producing runs of primes of the forms 6k+-1 Hugo Pfoertner, FORTRAN function ISPRIM to check primality. EXAMPLE a(2)=2, a(3)=3, a(4)=4 because the first occurrence of exactly 3 consecutive primes of the form 6*k-1 (47,53,59) follows the first occurrence of exactly 2 (23,29) and precedes the first occurrence of exactly 4 (251,257,263,269) primes of this form. PROG FORTRAN program given at link. CROSSREFS Cf. A055626, A085515 (sorted occurrence of first runs of "6k+1" primes). Sequence in context: A338466 A287929 A287928 * A276444 A276443 A239139 Adjacent sequences:  A085513 A085514 A085515 * A085517 A085518 A085519 KEYWORD more,nonn AUTHOR Hugo Pfoertner, Jul 31 2003 EXTENSIONS More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Oct 27 2006 a(32)-a(35) from Giovanni Resta, Aug 04 2013 STATUS approved

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Last modified December 1 16:44 EST 2021. Contains 349430 sequences. (Running on oeis4.)