281
This number is a prime.
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Sum of the only known terms in the "dead school teacher"
sequence, i.e., 66, 63, 57, 95.
Submitted: 2018-12-29 15:19:46; Last Modified: 2018-12-29 15:49:29.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell