Numbers k such that S(k+2) = d(k)+2, where S(k) is the Kempner function (A002034) and d(k) is the number of divisors of k (A000005).

A073535

Numbers k such that S(k+2) = d(k)+2, where S(k) is the Kempner function (A002034) and d(k) is the number of divisors of k (A000005).

Terms

    a(0) =1a(1) =2a(2) =14a(3) =34a(4) =46a(5) =96a(6) =142a(7) =178a(8) =196a(9) =240a(10) =358a(11) =598a(12) =718a(13) =1048a(14) =1350a(15) =1398a(16) =1598a(17) =1790a(18) =1798a(19) =2310a(20) =2350a(21) =2398a(22) =2698a(23) =3040a(24) =3232a(25) =3598a(26) =3820a(27) =3838a(28) =5094a(29) =5290

External references