T(n,k)=Number of length n+2 0..k arrays with the sum of the maximum minus twice the median plus the minimum of adjacent triples multiplied by some arrangement of +-1 equal to zero.

A251428

T(n,k)=Number of length n+2 0..k arrays with the sum of the maximum minus twice the median plus the minimum of adjacent triples multiplied by some arrangement of +-1 equal to zero.

Terms

    a(0) =2a(1) =9a(2) =12a(3) =16a(4) =41a(5) =12a(6) =29a(7) =116a(8) =97a(9) =40a(10) =42a(11) =237a(12) =380a(13) =341a(14) =56a(15) =61a(16) =432a(17) =1113a(18) =1888a(19) =1003a(20) =144a(21) =80a(22) =725a(23) =2532a(24) =6589a(25) =7458a(26) =3129a(27) =240a(28) =105a(29) =1128

External references