A030661 Product of next 2 primes after n.

6, 15, 35, 35, 77, 77, 143, 143, 143, 143, 221, 221, 323, 323, 323, 323, 437, 437, 667, 667, 667, 667, 899, 899, 899, 899, 899, 899, 1147, 1147, 1517, 1517, 1517, 1517, 1517, 1517, 1763, 1763, 1763, 1763

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn

Crossrefs

Cf. A000040.

Programs

Maple

A030661 := n->nextprime(n) * nextprime(nextprime(n));

Formula

a(n) = A151800(n) * A101300(n) . - R. J. Mathar, Aug 09 2019