Number of nondecreasing arrangements of n numbers x(i) in -(n+6)..(n+6) with the sum of sign(x(i))*x(i)^2 zero.
A188001
Number of nondecreasing arrangements of n numbers x(i) in -(n+6)..(n+6) with the sum of sign(x(i))*x(i)^2 zero.
Terms
- a(0) =1a(1) =9a(2) =12a(3) =88a(4) =270a(5) =1587a(6) =7674a(7) =43750a(8) =242128a(9) =1393159a(10) =8045324a(11) =46987016a(12) =275921190a(13) =1631855528a(14) =9700469624a(15) =57950502071a(16) =34778286544
External references
- oeis: A188001