1321320

Appears in sequences

• a(n) = 28*(n+1)*binomial(n+6,8)/3.at n=8A027820
• Numbers that can be expressed as the difference of the squares of primes in exactly fifteen distinct ways.at n=12A092011
• Number of 2 X 2 matrices having all terms in {-n,...,0,..,n} and odd determinant.at n=21A211155
• Triangle read by rows: T(n, k) = binomial(2*k, k) * binomial(2*n, n) / (n + 1).at n=42A379100