login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A072568 Even interprimes. 15
4, 6, 12, 18, 26, 30, 34, 42, 50, 56, 60, 64, 72, 76, 86, 102, 108, 120, 134, 138, 144, 150, 154, 160, 170, 176, 180, 186, 192, 198, 228, 236, 240, 246, 254, 260, 266, 270, 274, 282, 288, 300, 312, 324, 334, 342, 348, 356, 370, 376, 386, 414, 420, 426, 432 (list; graph; refs; listen; history; internal format)
OFFSET

4,1

COMMENTS

The interprimes (A024675) are those integers that lie at the mid-point between consecutive odd primes.

LINKS

Eric Weisstein's World of Mathematics, Interprime

MATHEMATICA

Select[Plus @@@ Partition[Table[Prime[n], {n, 2, 100}], 2, 1]/2, EvenQ]

CROSSREFS

Even members of A024675.

Cf. A024675, A072569, A072570, A072571, A072572, A072573.

Sequence in context: A022802 A074997 A045959 * A154965 A109290 A130441

Adjacent sequences:  A072565 A072566 A072567 * A072569 A072570 A072571

KEYWORD

easy,nonn

AUTHOR

Marco Matosic (marcomatosic(AT)hotmail.com), Jun 21 2002

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 21:56 EST 2012. Contains 205860 sequences.