A014690 a(n) = n + prime(n+1).

4, 7, 10, 15, 18, 23, 26, 31, 38, 41, 48, 53, 56, 61, 68, 75, 78, 85, 90, 93, 100, 105, 112, 121, 126, 129, 134, 137, 142, 157, 162, 169, 172, 183, 186, 193, 200, 205, 212, 219, 222, 233, 236, 241, 244, 257, 270, 275, 278, 283, 290, 293, 304, 311, 318, 325, 328

Offset

1,1

Comments

In sequence of odd primes add 1 to first prime, add 2 to 2nd prime, add 3 to 3rd prime and so on.

Links

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

Mathematica

a[n_]:=Prime[n+1]+n (Zak Seidov, May 05 2005)
With[{nn=60}, Prime[Range[2, nn+1]]+Range[nn]] (* Harvey P. Dale, Oct 02 2015 *)

Crossrefs

Essentially the same sequence as A095116.

Sequence in context: A298789 A064368 A026372 * A274383 A310704 A126891

Adjacent sequences: A014687 A014688 A014689 * A014691 A014692 A014693

Keyword

nonn,easy

Author

Mohammad K. Azarian

Extensions

More terms from Erich Friedman.

Status

approved