Numbers k such that Sum_{j=1..k} (-j)^j == 0 (mod k).
A343931
Numbers k such that Sum_{j=1..k} (-j)^j == 0 (mod k).
Terms
- a(0) =1a(1) =3a(2) =4a(3) =11a(4) =131a(5) =188a(6) =324a(7) =445a(8) =3548a(9) =8284a(10) =201403a(11) =253731a(12) =564084a(13) =1812500a(14) =4599115
External references
- oeis: A343931