A069630 a(1) = 3; a(2n) = smallest prime starting (most significant digits) with a(2n-1). a(2n+1) = smallest prime ending (least significant digits)in a(2n).

3, 31, 131, 1319, 21319, 213193, 12213193, 122131939, 1122131939, 112213193909, 17112213193909, 171122131939093, 18171122131939093, 1817112213193909339, 61817112213193909339, 618171122131939093397, 60618171122131939093397

Offset

1,1

Links

Table of n, a(n) for n=1..17.

Crossrefs

Cf. A069614 to A069621, A069628 to A069636. Different from A069615.

Sequence in context: A295534 A119682 A267941 * A069615 A087389 A294394

Adjacent sequences: A069627 A069628 A069629 * A069631 A069632 A069633

Keyword

nonn,base

Author

Amarnath Murthy, Mar 27 2002

Extensions

Edited and extended by Robert G. Wilson v, Apr 03 2002

Status

approved