53298

Appears in sequences

• Triangle T(n,k) read by rows, arising in enumeration of catafusenes.at n=61A024462
• Number of (w,x,y,z) with all terms in {0,...,n} and w=max{w,x,y,z}-2*min{w,x,y,z}.at n=31A212745
• Number of (w,x,y) with all terms in {0,...,n} and the numbers w,x,y,|w-x|,|x-y| distinct.at n=40A213490
• a(n) = gcd(Sum_{k=1...n} F(k), Product{j=1...n} F(j)), where F(k) is the k-th Fibonacci number.at n=31A239740
• a(n) = p*(p - 1)*(501*p^3 - 414*p^2 + 111*p - 54)/120, where p = prime(n).at n=3A273223
• Trapezoidal matrix T(n,k) (n>=1, 1<=k<=n+2) read by rows, arising in enumeration of unbranched k-4-catafusenes.at n=56A323943
• Number of ways to write n as an ordered sum of nine powers of 2.at n=40A342252