847288609445domain: NAppears in sequencesa(n) = 2-(-3)^n.at n=25A081630Numbers of the form 3^n+2 which are not primes.at n=15A132830a(n) = 3^(2*n-1) + 2.at n=12A134752a(n) = 3^n + 2.at n=25A168607Numbers of the form 3^k + 2 that admit at least one divisor of the form 3^m + 2 with 1 <= m < k.at n=8A375324