Number of restricted solid partitions of n.

Terms

a(0) =1a(1) =1a(2) =4a(3) =7a(4) =11a(5) =20a(6) =35a(7) =59a(8) =99a(9) =165a(10) =270a(11) =443a(12) =723a(13) =1161a(14) =1861a(15) =2961a(16) =4654a(17) =7279a(18) =11317a(19) =17476a(20) =26879a(21) =41132a(22) =62601a(23) =94878a(24) =143172a(25) =215115a(26) =321995a(27) =480216a(28) =713655a(29) =1057192