A194643 Number of primes between twin prime averages A014574(n) and A014574(k) such that 3*A014574(n)=2*A014574(k).

1, 2, 8, 16, 29, 98, 130, 219, 324, 530, 548, 592, 618, 621, 647, 703, 777, 800, 852, 948, 1015, 1144, 1211, 1282, 1358, 1546, 1563, 1609, 1650, 2170, 2171, 2197, 2252, 2358, 2394, 2426, 2509, 2561, 2593, 2616, 2878, 2887, 3029, 3158, 3365, 3372, 3391, 3441, 3496, 3727, 3784, 3920

Offset

1,2

Links

Table of n, a(n) for n=1..52.

Example

a(2) = 2 because A014574(3) = 12 < primes 13 and 17 < A014574(4) = 18 and 3*12 = 2*18.

Crossrefs

Cf. A014574, A048614, A194427.

Sequence in context: A157512 A252594 A137882 * A327329 A136514 A077071

Adjacent sequences: A194640 A194641 A194642 * A194644 A194645 A194646

Keyword

nonn,less

Author

Juri-Stepan Gerasimov, Dec 05 2011

Status

approved