Number of nondecreasing arrangements of n numbers in -(n+4)..(n+4) with sum zero.

A188208

Number of nondecreasing arrangements of n numbers in -(n+4)..(n+4) with sum zero.

Terms

    a(0) =1a(1) =7a(2) =32a(3) =177a(4) =967a(5) =5444a(6) =30982a(7) =178870a(8) =1043534a(9) =6147894a(10) =36525052a(11) =218635791a(12) =1317499741a(13) =7987022942a(14) =48681694352a(15) =298175840393

External references