Numbers n such that n and n+1 both have 28 divisors.

Terms

a(0) =156735a(1) =809919a(2) =1276479a(3) =1429568a(4) =1649727a(5) =1836351a(6) =2269376a(7) =2489535a(8) =2549312a(9) =2769471a(10) =2922560a(11) =3202496a(12) =3236031a(13) =4449087a(14) =4729023a(15) =4915647a(16) =5068736a(17) =5288895a(18) =5441984a(19) =5628608a(20) =5721920a(21) =6035391a(22) =6281792a(23) =6468416a(24) =6595263a(25) =6841664a(26) =7028288a(27) =7248447a(28) =7528383