361114

Appears in sequences

• Second binomial transform of the Catalan numbers.at n=9A064613
• Number of permutations p of (1,2,3,...,n) such that at least one value of abs(k-p(k)) is prime.at n=8A072950
• Triangle read by rows: row n is the first row of the matrix M[n]^(n-1), where M[n] is the n X n tridiagonal matrix with main diagonal (3,4,4,...) and super- and subdiagonals (1,1,1,...).at n=45A124574
• Riordan array (f(x), x*f(x)) where f(x) is the g.f. of A064613.at n=45A171568