Number of 4-line partitions of n decreasing across rows.

Terms

a(0) =1a(1) =2a(2) =4a(3) =7a(4) =11a(5) =19a(6) =29a(7) =46a(8) =70a(9) =106a(10) =156a(11) =232a(12) =334a(13) =482a(14) =686a(15) =971a(16) =1357a(17) =1894a(18) =2612a(19) =3592a(20) =4900a(21) =6656a(22) =8980a(23) =12077a(24) =16137a(25) =21490a(26) =28476a(27) =37600a(28) =49422a(29) =64763