A069629 a(1) = 2; a(2n) = smallest prime starting (most significant digits) with a(2n-1). a(2n+1) = smallest prime ending (least significant digits)in a(2n).

2, 23, 223, 2237, 32237, 3223709, 63223709, 6322370909, 66322370909, 6632237090903, 36632237090903, 3663223709090329, 73663223709090329, 736632237090903299, 5736632237090903299, 573663223709090329963

Offset

1,1

Links

Table of n, a(n) for n=1..16.

Crossrefs

Cf. A069614 to A069621, A069628 to A069636.

Sequence in context: A030456 A357436 A069837 * A069614 A036937 A083808

Adjacent sequences: A069626 A069627 A069628 * A069630 A069631 A069632

Keyword

nonn,base

Author

Amarnath Murthy, Mar 27 2002

Extensions

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

Status

approved