79191

Appears in sequences

• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (Fibonacci numbers), t = (composite numbers).at n=31A025081
• Number of permutations of length n which avoid the patterns 1234, 2431, 3421.at n=17A116834