308961

Appears in sequences

• a(n) = 19683*n - 5967.at n=15A157669
• Expansion of e.g.f. Sum_{n>=0} (n+1)^(n-1) * sinh(x)^n / n!.at n=7A219503
• Integers n such that the n-th prime divides the n-th Pell number (A000129(n)).at n=4A270493