A144430 a(n) = 1 + A144429(n).

2, 3, 4, 5, 7, 10, 11, 13, 16, 17, 19, 22, 23, 25, 28, 29, 31, 34, 35, 37, 40, 41, 43, 46, 47, 49, 52, 53, 55, 58, 59, 61, 64, 65, 67, 70, 71, 73, 76, 77, 79, 82, 83, 85, 88, 89, 91, 94, 95, 97, 100, 101, 103, 106, 107, 109, 112, 113, 115, 118, 119, 121, 124, 125, 127, 130

Offset

1,1

Comments

If you cross out every 3rd term starting at 4 and cross out multiples of 5, the reduced sequence is 2, 3, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 49, 53, 59, 61, ... which starts with 14 primes.

Essentially the same as A047259. - Georg Fischer, Oct 07 2018

Links

Muniru A Asiru, Table of n, a(n) for n = 1..2000

Formula

a(n) = a(n-3) + 6, n > 5.

Prog

(GAP) a:=[2, 3, 4, 5, 7];; for n in [6..70] do a[n]:=a[n-3]+6; od; a; # Muniru A Asiru, Oct 07 2018

Crossrefs

Cf. A144429.

Sequence in context: A191918 A191925 A160512 * A337382 A348253 A157082

Adjacent sequences: A144427 A144428 A144429 * A144431 A144432 A144433

Keyword

nonn,easy,less

Author

Milton L. Brown (miltbrown(AT)earthlink.net), Oct 13 2008

Extensions

Edited and extended by R. J. Mathar, Oct 15 2008

Status

approved