Number of length 4+2 0..n arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.

A250563

Number of length 4+2 0..n arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.

Terms

    a(0) =32a(1) =297a(2) =1516a(3) =5105a(4) =13732a(5) =31173a(6) =63400a(7) =117749a(8) =204712a(9) =336293a(10) =529072a(11) =800689a(12) =1175088a(13) =1677185a(14) =2338728a(15) =3193293a(16) =4283108a(17) =5649837a(18) =7347520a(19) =9429021a(20) =11959288a(21) =15003857a(22) =18642524a(23) =22951429a(24) =28026324a(25) =33959013a(26) =40858932a(27) =48834549

External references