Numbers k such that the arithmetic mean of the first k squarefree numbers is an integer.
A355544
Numbers k such that the arithmetic mean of the first k squarefree numbers is an integer.
Terms
- a(0) =1a(1) =3a(2) =6a(3) =37a(4) =75a(5) =668a(6) =1075a(7) =37732a(8) =742767a(9) =1811865a(10) =3140083a(11) =8937770a(12) =108268896a(13) =282951249a(14) =633932500a(15) =1275584757a(16) =60455590365
External references
- oeis: A355544