MacMahon's solid partitions of n in which 4 is the smallest summand.

Terms

a(0) =10a(1) =0a(2) =0a(3) =0a(4) =55a(5) =150a(6) =210a(7) =280a(8) =580a(9) =1275a(10) =2905a(11) =5350a(12) =9985a(13) =17965a(14) =33665a(15) =62895a(16) =117287a(17) =214610a(18) =389805a(19) =700720a(20) =1259890a(21) =2250405a(22) =4008717a(23) =7092366a(24) =12497237a(25) =21904825a(26) =38253450a(27) =66511772a(28) =115230973a(29) =198829023