Number of essentially different ways of arranging numbers 1 through 2n around a circle so that sum of each pair of adjacent numbers is prime.
A051252
Number of essentially different ways of arranging numbers 1 through 2n around a circle so that sum of each pair of adjacent numbers is prime.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =48a(5) =512a(6) =1440a(7) =40512a(8) =385072a(9) =3154650a(10) =106906168a(11) =3197817022a(12) =82924866213
External references
- oeis: A051252