A147967 a(n) = n*(A001223(n)-1) = n*A046933(n).

0, 2, 3, 12, 5, 18, 7, 24, 45, 10, 55, 36, 13, 42, 75, 80, 17, 90, 57, 20, 105, 66, 115, 168, 75, 26, 81, 28, 87, 390, 93, 160, 33, 306, 35, 180, 185, 114, 195, 200, 41, 378, 43, 132, 45, 506, 517, 144, 49, 150, 255, 52, 477

Offset

1,2

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

Module[{nn=60, gps}, gps=Differences[Prime[Range[nn+1]]]-1; Times@@@ Thread[ {Range[nn], gps}]] (* Harvey P. Dale, Nov 07 2020 *)

Crossrefs

Cf. A001223 ("gap" with its usual meaning), A046933, A141042, A147965, A147966.

Sequence in context: A214011 A344541 A081369 * A120487 A237873 A069220

Adjacent sequences: A147964 A147965 A147966 * A147968 A147969 A147970

Keyword

easy,nonn

Author

Omar E. Pol, Nov 17 2008

Extensions

Definition clarified by N. J. A. Sloane, Nov 22 2021 at the suggestion of Harvey P. Dale.

Status

approved