A069629 - cp's OEIS frontend

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).

n	a(n)
1	2
2	23
3	223
4	2237
5	32237
6	3223709
7	63223709
8	6322370909
9	66322370909
10	6632237090903
11	36632237090903
12	3663223709090329
13	73663223709090329
14	736632237090903299
15	5736632237090903299
16	573663223709090329963

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

cp's OEIS Frontend

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).

Table of values

List of values