T(n,k)=Number of arrays of n+2 integers in -k..k with sum zero and the sum of every adjacent pair being odd.

A202076

T(n,k)=Number of arrays of n+2 integers in -k..k with sum zero and the sum of every adjacent pair being odd.

Terms

    a(0) =2a(1) =4a(2) =4a(3) =10a(4) =20a(5) =2a(6) =14a(7) =56a(8) =26a(9) =0a(10) =24a(11) =120a(12) =78a(13) =0a(14) =6a(15) =30a(16) =220a(17) =264a(18) =0a(19) =96a(20) =12a(21) =44a(22) =364a(23) =504a(24) =0a(25) =1014a(26) =524a(27) =6a(28) =52a(29) =560

External references