Number of subsets of {1..n} containing the product of any set of distinct elements whose product is <= n.

A326081

Number of subsets of {1..n} containing the product of any set of distinct elements whose product is <= n.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =56a(7) =112a(8) =200a(9) =400a(10) =728a(11) =1456a(12) =2368a(13) =4736a(14) =8896a(15) =16112a(16) =30016a(17) =60032a(18) =105472a(19) =210944a(20) =366848a(21) =679680a(22) =1327232a(23) =2654464a(24) =4434176a(25) =8868352a(26) =17488640a(27) =33118336a(28) =60069248a(29) =120138496

External references