Number of nondecreasing arrangements of n numbers in -5..5 with sum zero and sum of squares not greater than n*30/3.
A183923
Number of nondecreasing arrangements of n numbers in -5..5 with sum zero and sum of squares not greater than n*30/3.
Terms
- a(0) =1a(1) =4a(2) =12a(3) =37a(4) =93a(5) =220a(6) =476a(7) =979a(8) =1888a(9) =3493a(10) =6187a(11) =10619a(12) =17646a(13) =28558a(14) =45007a(15) =69453a(16) =104985a(17) =155861a(18) =227488a(19) =327057a(20) =463466a(21) =648333a(22) =895855a(23) =1224083a(24) =1654923a(25) =2215739a(26) =2939098a(27) =3865358a(28) =5042160a(29) =6527147
External references
- oeis: A183923