814506

Appears in sequences

• G.f. A(x) satisfies A(x) = 1 + x*A(x)^4*A(-x)^3.at n=13A143547
• Number of (n+2) X (3+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 0 3 5 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 0 3 5 6 or 7.at n=32A252249
• Oblong numbers which are products of six distinct primes.at n=19A359127
• a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/6)} a(6*k) * a(n-1-6*k).at n=39A386380
• a(n) = 4 * binomial(7*n+4,n)/(7*n+4).at n=6A386392