Numbers k such that k through k+6 all have the same number of divisors.

Terms

a(0) =171893a(1) =180965a(2) =647381a(3) =1039493a(4) =1071829a(5) =1450261a(6) =1563653a(7) =1713413a(8) =2129029a(9) =2384101a(10) =4704581a(11) =4773301a(12) =5440853a(13) =5775365a(14) =6627061a(15) =6644405a(16) =6697253a(17) =8556661a(18) =8833429a(19) =10531253a(20) =12101509a(21) =12238453a(22) =12307141a(23) =13416661a(24) =13970405