Numbers k such that k = x + y, k' = x' + y' and k'' = x'' + y'', where k' and k'' are the first and second arithmetic derivatives of k.
A293252
Numbers k such that k = x + y, k' = x' + y' and k'' = x'' + y'', where k' and k'' are the first and second arithmetic derivatives of k.
Terms
- a(0) =3a(1) =778a(2) =1331a(3) =1575a(4) =1589a(5) =3111a(6) =5368a(7) =14060a(8) =17649a(9) =17714a(10) =23232a(11) =33813a(12) =34353a(13) =36234a(14) =52936a(15) =53391a(16) =66375a(17) =74544a(18) =80938a(19) =88945a(20) =93475a(21) =94905a(22) =97470a(23) =98434a(24) =156816a(25) =180804a(26) =207754a(27) =229502a(28) =238830a(29) =267120
External references
- oeis: A293252