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A088463 Upper twin primes of upper twin prime index. 2
31, 61, 181, 283, 811, 1279, 1999, 2551, 3931, 4159, 5659, 6553, 8389, 9241, 9463, 11551, 12253, 14629, 15889, 17923, 20509, 26113, 27109, 29401, 33829, 37993, 41179, 42571, 44623, 46681, 59671, 61333, 62143, 65449, 67759, 81019, 82009 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

a(n) == 1 (mod 6)

FORMULA

Equals A006512(A006512(n))

PROG

(PARI) a(k) = { for(x1=1, k, y1=twinu(twinu(x1)); print1(y1", ") ) } twin(n) = { c=0; x=1; while(c<n, if(isprime(prime(x)+2), c++); x++; ); return(prime(x)) }

CROSSREFS

Cf. A006512, A088460, A007097.

Sequence in context: A114991 A139892 A088464 * A195745 A078855 A053430

Adjacent sequences:  A088460 A088461 A088462 * A088464 A088465 A088466

KEYWORD

nonn

AUTHOR

Cino Hilliard (hillcino368(AT)gmail.com), Nov 12 2003

EXTENSIONS

Edited by David W. Wilson (davidwwilson(AT)comcast.net) Oct 29, 2006

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Last modified February 14 11:36 EST 2012. Contains 205623 sequences.