Number of parts that are multiples of 3 in all partitions of n.

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =2a(6) =5a(7) =7a(8) =11a(9) =19a(10) =27a(11) =40a(12) =61a(13) =85a(14) =120a(15) =170a(16) =232a(17) =316a(18) =433a(19) =576a(20) =767a(21) =1017a(22) =1332a(23) =1735a(24) =2259a(25) =2905a(26) =3730a(27) =4768a(28) =6058a(29) =7663