A152528 a(n) = p(n)*p(n+2) - 3*p(n+1), where p(n) is the n-th prime.

1, 6, 34, 58, 148, 196, 334, 482, 626, 980, 1160, 1468, 1798, 2138, 2614, 3056, 3770, 4130, 4678, 5390, 5822, 6782, 7784, 8698, 9688, 10498, 10906, 11764, 13504, 14422, 17006, 17798, 19996, 20542, 22940, 24142, 25730, 27698

Offset

1,2

Links

Table of n, a(n) for n=1..38.

Maple

A152528 := proc(n)
    ithprime(n)*ithprime(n+2)-3*ithprime(n+1) ;
end proc: # R. J. Mathar, Jul 28 2015

Mathematica

#[[1]]*#[[3]]-3*#[[2]]&/@Partition[Prime[Range[50]], 3, 1] (* Harvey P. Dale, Jul 14 2014 *)

Crossrefs

Cf. A000040, A111071, A152527, A152529, A152530, A152531, A152532.

Sequence in context: A222174 A044464 A113528 * A135733 A072312 A233510

Adjacent sequences: A152525 A152526 A152527 * A152529 A152530 A152531

Keyword

easy,nonn

Author

Omar E. Pol, Dec 06 2008

Status

approved