Least n-almost prime of the form semiprime + 1.

Terms

a(0) =5a(1) =10a(2) =27a(3) =16a(4) =112a(5) =96a(6) =288a(7) =896a(8) =512a(9) =1536a(10) =2048a(11) =10240a(12) =12288a(13) =36864a(14) =49152a(15) =98304a(16) =196608a(17) =393216a(18) =1769472a(19) =1572864a(20) =3145728a(21) =6291456a(22) =8388608a(23) =41943040a(24) =50331648a(25) =234881024a(26) =201326592a(27) =905969664a(28) =805306368a(29) =6039797760