Prime digits p in base n are counted if there is no prime with 2 digits which can have its rightmost digit removed to produce p.
Table of n, a(n) for n=2..10.
I. O. Angell and H. J. Godwin, On Truncatable Primes, Math. Comput. 31, 265-267, 1977.
Eric Weisstein's World of Mathematics, Truncatable Prime.
Index entries for sequences related to truncatable primes
Sequence in context: A241473 A055858 A141389 * A076125 A011033 A179219
Adjacent sequences: A133754 A133755 A133756 * A133758 A133759 A133760
Martin Renner, Jan 04 2008