36196

Appears in sequences

• Number of permutations of length n which avoid the patterns 1243, 2341, 4321.at n=17A116825
• a(n) = a(n-1) + a(n-3) + a(n-5).at n=22A122115
• Number of (n+3) X 4 0..1 matrices with each 4 X 4 subblock idempotent.at n=14A224561
• a(n) = n! * Sum_{k=1..n} ( Sum_{d|k} 1/(d * (k/d)^d) )/(n-k)!.at n=7A354339
• Expansion of Sum_{k>0} (1/(1-x^k)^6 - 1).at n=17A363696