Number of permutations p of [n] such that six is the maximum of the number of elements in any integer interval [p(i)..i+n*[i<p(i)]].
A324633
Number of permutations p of [n] such that six is the maximum of the number of elements in any integer interval [p(i)..i+n*[i<p(i)]].
Terms
- a(0) =455a(1) =1275a(2) =3473a(3) =9289a(4) =24610a(5) =65209a(6) =173111a(7) =457965a(8) =1209129a(9) =3188384a(10) =8398593a(11) =22099695a(12) =58093331a(13) =152580223a(14) =400447410a(15) =1050268035a(16) =2752906205a(17) =7211859945a(18) =18883970399a(19) =49425546206a(20) =129312763273a(21) =338205545317a(22) =884270902713
External references
- oeis: A324633