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A147820 Nearest-neighbors of odd primes, divided by 2. +0
2
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 26, 27, 29, 30, 31, 33, 34, 35, 36, 37, 39, 40, 41, 42, 44, 45, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 63, 64, 65, 66, 68, 69, 70, 74, 75, 76, 78, 79, 81 (list; graph; listen)
OFFSET

1,2

FORMULA

a(n) = A147819(n)/2.

CROSSREFS

Cf. A134926, A134933, A147819.

Sequence in context: A026467 A088185 A118844 this_sequence A033892 A033620 A033637

Adjacent sequences: A147817 A147818 A147819 this_sequence A147821 A147822 A147823

KEYWORD

easy,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Nov 14 2008

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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