A069633 a(1) = 6; a(2n) = smallest prime starting (most significant digits) with a(2n-1). a(2n+1) = smallest prime ending (least significant digits)in a(2n).
6, 61, 461, 46103, 546103, 5461031, 55461031, 554610311, 12554610311, 125546103119, 17125546103119, 1712554610311907, 81712554610311907, 8171255461031190733, 108171255461031190733, 10817125546103119073317
Offset: 1
Extensions
Edited and extended by Robert G. Wilson v, Apr 03 2002