A253591 a(n) is the largest prime occurring (as a factor) in all terms up to A098550(n).

2, 3, 3, 3, 3, 5, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 11, 13, 13, 13, 13, 13, 13, 13, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 19, 19, 19, 19, 19, 19, 19, 19, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 29, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31

Offset

2,1

Links

Table of n, a(n) for n=2..69.

Crossrefs

Cf. A098550, A253593

Sequence in context: A155047 A369451 A029088 * A129263 A035367 A042959

Adjacent sequences: A253588 A253589 A253590 * A253592 A253593 A253594

Keyword

nonn,easy

Author

Bob Selcoe, Jan 04 2015

Status

approved