"Near Primorial" numbers.

Terms

a(0) =10a(1) =15a(2) =42a(3) =70a(4) =105a(5) =330a(6) =462a(7) =770a(8) =1155a(9) =2730a(10) =4290a(11) =6006a(12) =10010a(13) =15015a(14) =39270a(15) =46410a(16) =72930a(17) =102102a(18) =170170a(19) =255255a(20) =570570a(21) =746130a(22) =881790a(23) =1385670a(24) =1939938a(25) =3233230a(26) =4849845a(27) =11741730a(28) =13123110a(29) =17160990