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A081414 Largest prime divisor of p[1+2^n]-p[2^n] prime differences. 0
2, 2, 2, 3, 3, 2, 2, 2, 2, 3, 3, 3, 5, 2, 3, 3, 2, 3, 2, 13, 5, 17, 2, 5, 5, 5, 2, 5, 3, 7, 2, 3, 11, 3, 3, 13, 5, 11, 2, 5, 3, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..42.

FORMULA

a(n)=A006530[A001223(A000079(n)]=A081412(2^n)=A006530[A074325(n)]

CROSSREFS

Cf. A006530, A001223, A000079, A081412, A081413, A074325.

Sequence in context: A354226 A341421 A308890 * A328577 A094321 A107789

Adjacent sequences: A081411 A081412 A081413 * A081415 A081416 A081417

KEYWORD

nonn

AUTHOR

Labos Elemer, Apr 02 2003

EXTENSIONS

Three more terms from Max Alekseyev, May 15 2009

STATUS

approved

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Last modified December 6 14:43 EST 2022. Contains 358644 sequences. (Running on oeis4.)