Number of ways to write n as an lterm, where an lterm is an unordered sum which is either 2, or 1 + an ordered product of lterms.
A050366
Number of ways to write n as an lterm, where an lterm is an unordered sum which is either 2, or 1 + an ordered product of lterms.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =4a(6) =4a(7) =7a(8) =8a(9) =12a(10) =12a(11) =21a(12) =21a(13) =29a(14) =33a(15) =46a(16) =46a(17) =67a(18) =67a(19) =93a(20) =101a(21) =125a(22) =125a(23) =177a(24) =181a(25) =223a(26) =238a(27) =300a(28) =300a(29) =394
External references
- oeis: A050366