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There is a total number of 22 left truncatable primes in base 7.
Angell, I. O. and Godwin, H. J. "On Truncatable Primes." Math. Comput. 31, 265-267, 1977.
Table of n, a(n) for n=1..22.
Index entries for sequences related to truncatable primes
Eric Weisstein: Truncatable Prime.
Cf. A024782, A076623.
Sequence in context: A035089 A045313 A045314 * A129673 A215372 A058501
Adjacent sequences: A129940 A129941 A129942 * A129944 A129945 A129946
Martin Renner, Jun 09 2007