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The smallest prime whose reversal is a tenth power (1024 = 2^{10}). [Gupta]
The largest known prime tribonacci number is element number 4201 in the sequence, which has 1112 digits. Eric W. Weisstein found this in March 2004, after examining the first 10^4 tribonacci numbers. Note that Dr. Weisstein neglected to point out that 4201 is itself prime. [Post] The smaller of only two primes of form p*q*r+2 where p, q, r, are consecutive doubledigit primes, i.e., 13*17*19+2. The other is 74779=37*43*47+2. [Loungrides]
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