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A013608 7^n-prevprime(7^n). 0
2, 2, 6, 2, 20, 6, 2, 2, 6, 8, 44, 2, 36, 32, 2, 24, 36, 50, 92, 18, 6, 32, 86, 60, 6, 50, 12, 2, 186, 18, 2, 72, 6, 12, 60, 12, 260, 116, 86, 24, 96, 102, 66, 44, 18, 86, 110, 48, 6, 8, 72, 212, 138, 6, 104, 138, 90, 270, 114, 152, 30, 150, 50, 150, 66, 170 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..66.

MAPLE

seq(7^i-prevprime(7^i), i=1..100);

CROSSREFS

Sequence in context: A061057 A038667 A199823 * A196441 A130674 A100346

Adjacent sequences:  A013605 A013606 A013607 * A013609 A013610 A013611

KEYWORD

nonn

AUTHOR

James Kilfiger (mapdn(AT)csv.warwick.ac.uk)

STATUS

approved

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Last modified April 19 21:10 EDT 2014. Contains 240777 sequences.