Number of partitions of 3n-1 into n nonnegative integers each no more than 6.

Terms

a(0) =0a(1) =1a(2) =3a(3) =8a(4) =16a(5) =32a(6) =55a(7) =94a(8) =147a(9) =227a(10) =332a(11) =480a(12) =668a(13) =920a(14) =1232a(15) =1635a(16) =2124a(17) =2738a(18) =3470a(19) =4368a(20) =5424a(21) =6695a(22) =8172a(23) =9922a(24) =11934a(25) =14287a(26) =16968a(27) =20068a(28) =23572a(29) =27584