Number of n-multigraphs on 5 nodes.

Terms

a(0) =0a(1) =1a(2) =34a(3) =792a(4) =10688a(5) =90005a(6) =533358a(7) =2437848a(8) =9156288a(9) =29522961a(10) =84293770a(11) =217993600a(12) =519341472a(13) =1154658869a(14) =2420188694a(15) =4821091920a(16) =9187076352a(17) =16837177281a(18) =29809183410a(19) =51172613512a(20) =85448030080a(21) =139159855989a(22) =221554769150a(23) =345523218536a(24) =528767663040