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A252016 a(1)=2, a(2)=23; thereafter a(n) is the smallest prime which begins with the concatenation a(n-2)a(n-1). 1
2, 23, 223, 2322337, 223232233717, 232233722323223371711, 223232233717232233722323223371711159, 232233722323223371711223232233717232233722323223371711159007 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(4) = 2322337 == 23, 223, 37

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..13

CROSSREFS

Cf. A240563.

Sequence in context: A069614 A036937 A083808 * A037750 A037631 A026075

Adjacent sequences:  A252013 A252014 A252015 * A252017 A252018 A252019

KEYWORD

nonn,base

AUTHOR

Giovanni Teofilatto, Dec 13 2014

EXTENSIONS

a(6)-a(8) from Alois P. Heinz, Jan 01 2015

STATUS

approved

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Last modified January 28 12:46 EST 2022. Contains 350656 sequences. (Running on oeis4.)