A157481 Number of primes between n^3-n^2 and (n+1)^3-(n+1)^2.

0, 2, 5, 8, 10, 16, 21, 24, 32, 36, 43, 53, 57, 65, 74, 86, 92, 104, 114, 123, 133, 150, 151, 175, 180, 194, 207, 224, 238, 251, 271, 275, 306, 305, 332, 349, 359, 383, 408, 410, 434, 458, 473, 497, 502, 549, 553, 570, 590, 630, 641, 668, 685, 718, 726, 748, 780

Offset

1,2

Links

Table of n, a(n) for n=1..57.

Mathematica

Table[PrimePi[(n+1)^3-(n+1)^2]-PrimePi[n^3-n^2], {n, 0, 5!}]

Crossrefs

Cf. A049451, A060199, A014085, A144391

Sequence in context: A189928 A309518 A169922 * A100809 A056734 A019995

Adjacent sequences: A157478 A157479 A157480 * A157482 A157483 A157484

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Mar 01 2009

Status

approved