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
Thu Feb 4 00:25:19 CET 2010 [seqfan] Number of points with maximum norm n in A2, A3, A4, A5, D5