Number of partitions of n with up to three distinct kinds of 1.

Terms

a(0) =1a(1) =3a(2) =4a(3) =5a(4) =8a(5) =12a(6) =17a(7) =24a(8) =33a(9) =45a(10) =61a(11) =81a(12) =107a(13) =141a(14) =183a(15) =236a(16) =304a(17) =388a(18) =492a(19) =622a(20) =782a(21) =979a(22) =1221a(23) =1515a(24) =1874a(25) =2312a(26) =2840a(27) =3477a(28) =4247a(29) =5171