129140165

Appears in sequences

• a(n) = 2-(-3)^n.at n=17A081630
• Numbers of the form 3^n+2 which are not primes.at n=8A132830
• a(n) = 3^(2*n-1) + 2.at n=8A134752
• (0, 1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3, 13, ...) becomes (0^1 + 2, 3^2 + 2, 5^2 + 3, 7^2 + 3, 3^2 + 2, 5^11 + 2, 2^3 + 13, ...).at n=33A143651
• a(n) = 3^n + 2.at n=17A168607
• a(n) = floor( (3^n+1)^2/3^n ).at n=17A259821
• Numbers of the form 3^k + 2 that admit at least one divisor of the form 3^m + 2 with 1 <= m < k.at n=5A375324