Number of integer partitions of n whose product of parts is not n.

Terms

a(0) =1a(1) =0a(2) =1a(3) =2a(4) =3a(5) =6a(6) =9a(7) =14a(8) =19a(9) =28a(10) =40a(11) =55a(12) =73a(13) =100a(14) =133a(15) =174a(16) =226a(17) =296a(18) =381a(19) =489a(20) =623a(21) =790a(22) =1000a(23) =1254a(24) =1568a(25) =1956a(26) =2434a(27) =3007a(28) =3714a(29) =4564