A116457 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A116457

a(1) = 1; a(n) = prime((a(n-1)+3)/2).

1, 3, 5, 7, 11, 17, 29, 53, 107, 257, 733, 2503, 10211, 49739, 285377, 1909561, 14736529, 129812899, 1293238351, 14448382721, 179668662139, 2470072307533, 37316454626819

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..23.

MATHEMATICA

a[1]=1; a[n_]:=a[n]=Prime[(a[n-1]+3)/2]; Table[a[n], {n, 20}]

NestList[Prime[(#+3)/2]&, 1, 21] (* Harvey P. Dale, Apr 01 2019 *)

CROSSREFS

Cf. A104296, A104298.

Sequence in context: A068811 A145987 A088083 * A037155 A282632 A212912

Adjacent sequences: A116454 A116455 A116456 * A116458 A116459 A116460