Number of length 3+1 0..n arrays with the sum of adjacent differences multiplied by some arrangement of +-1 equal to zero.

A250168

Number of length 3+1 0..n arrays with the sum of adjacent differences multiplied by some arrangement of +-1 equal to zero.

Terms

    a(0) =8a(1) =37a(2) =96a(3) =211a(4) =380a(5) =639a(6) =976a(7) =1437a(8) =2000a(9) =2721a(10) =3568a(11) =4607a(12) =5796a(13) =7211a(14) =8800a(15) =10649a(16) =12696a(17) =15037a(18) =17600a(19) =20491a(20) =23628a(21) =27127a(22) =30896a(23) =35061a(24) =39520a(25) =44409a(26) =49616a(27) =55287a(28) =61300a(29) =67811

External references