Number of permutations of 0..(n-1) representable as consecutive sums of 5 adjacent elements of a sequence of n+4 nonnegative integers.
A180208
Number of permutations of 0..(n-1) representable as consecutive sums of 5 adjacent elements of a sequence of n+4 nonnegative integers.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =66a(7) =148a(8) =376a(9) =1138a(10) =3834a(11) =14832a(12) =60584a(13) =263480a(14) =1159034a(15) =5218514
External references
- oeis: A180208