Number of arrays of 7 integers in -n..n with sum zero and adjacent elements differing in absolute value.

A202967

Number of arrays of 7 integers in -n..n with sum zero and adjacent elements differing in absolute value.

Terms

    a(0) =6a(1) =524a(2) =9872a(3) =66208a(4) =289536a(5) =941086a(6) =2537024a(7) =5933492a(8) =12515772a(9) =24295760a(10) =44188086a(11) =76110890a(12) =125357152a(13) =198686606a(14) =304811136a(15) =454458544a(16) =660981870a(17) =940393644a(18) =1312104510a(19) =1798910920a(20) =2427885688a(21) =3230300850a(22) =4242680088

External references