Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A080701
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A080701 Product of upper bound twin-prime-index-primes and their upper bound twin prime. +0
1
55, 119, 533, 1273, 3937, 8213, 17263, 26791, 57989, 65291, 110783, 132427, 196747, 226003, 242183, 331363, 367043, 471811, 522701, 651353, 820499, 1224689, 1307227, 1527437, 1967003, 2371363, 2657021, 2826973, 3078041, 3267323 (list; graph; listen)
OFFSET

1,1

FORMULA

Let p(i) =i-th prime, let twin(n) = (P, Q) be n-th pair of twin primes; sequence gives p(Q)*Q.

EXAMPLE

The 3rd pair of twin primes is twin(3) = (11,13), p(13) = 41 Seq(3) = 41*13 = 533

CROSSREFS

Cf. A057470, A057473.

Sequence in context: A044242 A044623 A063345 this_sequence A039442 A063324 A046156

Adjacent sequences: A080698 A080699 A080700 this_sequence A080702 A080703 A080704

KEYWORD

easy,nonn

AUTHOR

Cino Hilliard (hillcino368(AT)gmail.com), Mar 04 2003

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


AT&T Labs Research