

A284060


Primes that are left, left/right, and righttruncatable.


0



2, 3, 5, 7, 23, 37, 53, 73, 373, 3137, 3797
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OFFSET

1,1


COMMENTS

Intersection of A020994 and A077390. Only the last three terms exhibit all three properties nontrivially.


LINKS



EXAMPLE

The prime 3797 is a term because it is a term of A024785 (truncating from the left: 797, 97, 7 are primes), of A077390 (truncating the same number of digits from left and from right: 79 is a prime), and of A024770 (truncating from the right: 379, 37, 3 are primes). The digit 9 is not a prime, so 3797 is not also a term of A085823.


CROSSREFS



KEYWORD

nonn,base,fini,full


AUTHOR



STATUS

approved



