Numbers k such that k and k+1 have the same denominator of the harmonic means of their unitary divisors.

A348657

Numbers k such that k and k+1 have the same denominator of the harmonic means of their unitary divisors.

Terms

    a(0) =266a(1) =321a(2) =1015a(3) =2544a(4) =4004a(5) =4277a(6) =5016a(7) =15861a(8) =28461a(9) =47613a(10) =63546a(11) =135078a(12) =137333a(13) =203709a(14) =207024a(15) =265489a(16) =344217a(17) =383466a(18) =517610a(19) =603687a(20) =787156a(21) =798625a(22) =876469a(23) =1100835a(24) =1713865a(25) =2062863a(26) =2246923a(27) =2349390a(28) =2666741a(29) =3013830

External references