Number of distinct ways of arranging the squares {1,4,9,...,(2n)^2} in a circle so that the sum of each two adjacent entries is a prime.
A072129
Number of distinct ways of arranging the squares {1,4,9,...,(2n)^2} in a circle so that the sum of each two adjacent entries is a prime.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =6a(5) =0a(6) =96a(7) =272a(8) =1408a(9) =61622a(10) =33736a(11) =356606a(12) =86520774a(13) =192570133a(14) =1560696233
External references
- oeis: A072129