**Number of ordered quintuples (a,b,c,d,e), -n<= a,b,c,d,e<=n, such that a+b+c+d+e=0.**

*1, 51, 381, 1451, 3951, 8801, 17151, 30381, 50101, 78151, 116601, 167751, 234131*

*1 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

Links to OEIS content are included according to The OEIS End-User License Agreement .