25379

Appears in sequences

• Let y=f(x) satisfy F(x,y)=0. a(n) is the number of terms in the expansion of (d/dx)^n y in terms of the partial derivatives of F.at n=12A003262
• Numbers n such that Catalan(n)+1 is prime.at n=36A053429
• Building block is 2 hexagons side-by-side; sequence gives number of pieces (polydohexes) that can be formed from n such pairs of hexagons.at n=4A057783
• (1, 4, 7, 10, 13, ...) convolved with (1, 0, 4, 7, 10, 13, ...); given A016777 = (1, 4, 7, 10, 13, ...).at n=26A179905
• Least positive integer k such that both k and k*n belong to the set {m>0: prime(m)+2 is prime with prime(prime(m)+2) = prime(prime(m))+6}.at n=9A261528
• a(n) = (Product_{i=1..n} Fibonacci(i)) mod Fibonacci(n + 1).at n=29A371598