Numbers k such that k through k+5 all have the same number of divisors.

Terms

a(0) =28374a(1) =90181a(2) =157493a(3) =171893a(4) =171894a(5) =180965a(6) =180966a(7) =210133a(8) =298694a(9) =346502a(10) =369061a(11) =376742a(12) =610310a(13) =647381a(14) =647382a(15) =707286a(16) =729542a(17) =769862a(18) =1039493a(19) =1039494a(20) =1071829a(21) =1071830a(22) =1243541a(23) =1302005a(24) =1449605a(25) =1450261a(26) =1450262