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A072568 Even interprimes. 16
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; text; internal format)
OFFSET
1,1
COMMENTS
The interprimes (A024675) are those integers that lie at the midpoint 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.
Sequence in context: A045959 A310600 A296507 * A154965 A249630 A109290
KEYWORD
easy,nonn
AUTHOR
Marco Matosic, Jun 21 2002
EXTENSIONS
Offset corrected by Amiram Eldar, Mar 23 2020
STATUS
approved

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Last modified July 20 13:32 EDT 2024. Contains 374445 sequences. (Running on oeis4.)