T(n,k)=Number of length n+2 0..k arrays with the sum of second differences squared multiplied by some arrangement of +-1 equal to zero.
A250320
T(n,k)=Number of length n+2 0..k arrays with the sum of second differences squared multiplied by some arrangement of +-1 equal to zero.
Terms
- a(0) =2a(1) =5a(2) =8a(3) =8a(4) =25a(5) =8a(6) =13a(7) =60a(8) =41a(9) =24a(10) =18a(11) =117a(12) =104a(13) =161a(14) =42a(15) =25a(16) =200a(17) =233a(18) =652a(19) =487a(20) =104a(21) =32a(22) =321a(23) =436a(24) =1773a(25) =2432a(26) =1689a(27) =212a(28) =41a(29) =480
External references
- oeis: A250320