1062869domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 2^i*3^j - (i+j) with i, j >= 0.at n=21A069356a(n) = 2*3^n - n - 1.at n=12A132308a(n) is the position of the first term in A303762 that has prime(n) as one of its prime factors.at n=24A302774Prime numbersat n=83021