Integers k such that there are i groups of order k+i up to isomorphism, for i=1,2,3.

Terms

a(0) =72a(1) =864a(2) =2064a(3) =2172a(4) =3972a(5) =7932a(6) =10332a(7) =12632a(8) =15120a(9) =16536a(10) =17472a(11) =19236a(12) =20316a(13) =20336a(14) =20664a(15) =23772a(16) =23880a(17) =24420a(18) =25092a(19) =28920a(20) =31476a(21) =33132a(22) =35136a(23) =36876a(24) =38172a(25) =41016a(26) =41772a(27) =42060a(28) =46020a(29) =51480