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A138225 Number of pairs (p,q) of primes with p<q<prime(n), p+q>prime(n), q+prime(n)>p and prime(n)+p>q. 1
0, 0, 0, 1, 1, 3, 4, 7, 9, 9, 14, 14, 20, 27, 33, 34, 37, 46, 49, 59, 71, 74, 86, 91, 89, 103, 119, 134, 152, 166, 143, 162, 173, 196, 193, 214, 225, 238, 264, 273, 287, 312, 312, 342, 369, 399, 381, 374, 407, 442, 474, 490, 522, 525, 545, 566, 587, 623, 646, 683 (list; graph; refs; listen; history; internal format)
OFFSET

1,6

COMMENTS

A138226 = partial sums.

EXAMPLE

A000040(7)=17: a(7) = #((7,11),(5,13),(7,13),(11,13)) = 4.

CROSSREFS

Sequence in context: A169899 A075773 A087276 * A114889 A174659 A010444

Adjacent sequences:  A138222 A138223 A138224 * A138226 A138227 A138228

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 06 2008

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Last modified February 15 14:37 EST 2012. Contains 205822 sequences.