Number of paraffins.

Terms

a(0) =1a(1) =3a(2) =10a(3) =20a(4) =39a(5) =63a(6) =100a(7) =144a(8) =205a(9) =275a(10) =366a(11) =468a(12) =595a(13) =735a(14) =904a(15) =1088a(16) =1305a(17) =1539a(18) =1810a(19) =2100a(20) =2431a(21) =2783a(22) =3180a(23) =3600a(24) =4069a(25) =4563a(26) =5110a(27) =5684a(28) =6315a(29) =6975