Numbers of the form j*k + k*i + i*j, where i,j,k >= 1.

Terms

a(0) =3a(1) =5a(2) =7a(3) =8a(4) =9a(5) =11a(6) =12a(7) =13a(8) =14a(9) =15a(10) =16a(11) =17a(12) =19a(13) =20a(14) =21a(15) =23a(16) =24a(17) =25a(18) =26a(19) =27a(20) =28a(21) =29a(22) =31a(23) =32a(24) =33a(25) =34a(26) =35a(27) =36a(28) =37a(29) =38