Number of nondecreasing arrangements of n numbers in -(n+3)..(n+3) with sum zero and not more than two numbers equal.
A188232
Number of nondecreasing arrangements of n numbers in -(n+3)..(n+3) with sum zero and not more than two numbers equal.
Terms
- a(0) =1a(1) =6a(2) =24a(3) =121a(4) =598a(5) =3047a(6) =15696a(7) =81981a(8) =432491a(9) =2302608a(10) =12355260a(11) =66761159a(12) =362992938a(13) =1984748322a(14) =10907074884a(15) =60215001180a(16) =333824553431
External references
- oeis: A188232