Numbers m such that numbers m, m + 1, m + 2 and m + 3 have k, 2k, 3k and 4k divisors respectively.

Terms

a(0) =421a(1) =3013a(2) =5029a(3) =5223a(4) =5245a(5) =5893a(6) =6487a(7) =10533a(8) =11911a(9) =14677a(10) =17173a(11) =23077a(12) =23573a(13) =24613a(14) =25141a(15) =25213a(16) =27637a(17) =27973a(18) =28357a(19) =30661a(20) =32407a(21) =34117a(22) =37477a(23) =38282a(24) =39751a(25) =43495a(26) =45973a(27) =47365a(28) =48423a(29) =50821