A104089 Largest prime <= 4^n.

3, 13, 61, 251, 1021, 4093, 16381, 65521, 262139, 1048573, 4194301, 16777213, 67108859, 268435399, 1073741789, 4294967291, 17179869143, 68719476731, 274877906899, 1099511627689, 4398046511093, 17592186044399, 70368744177643

Offset

1,1

Links

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

Prog

(PARI) g(n, b) = for(x=0, n, print1(precprime(b^x)", "))

Crossrefs

Sequence in context: A341077 A357749 A112568 * A334150 A239995 A319924

Adjacent sequences: A104086 A104087 A104088 * A104090 A104091 A104092

Keyword

easy,nonn

Author

Cino Hilliard, Mar 03 2005

Status

approved