Number of nondecreasing arrangements of n numbers in -7..7 with sum zero and sum of squares less than n*56/3.

A183933

Number of nondecreasing arrangements of n numbers in -7..7 with sum zero and sum of squares less than n*56/3.

Terms

    a(0) =1a(1) =5a(2) =20a(3) =83a(4) =262a(5) =777a(6) =2117a(7) =5278a(8) =12353a(9) =27893a(10) =58831a(11) =118985a(12) =235504a(13) =443653a(14) =810431a(15) =1459822a(16) =2529977a(17) =4285656a(18) =7192569a(19) =11698167a(20) =18689016a(21) =29678739a(22) =45907880a(23) =70000817a(24) =106315189a(25) =157902365a(26) =231761845a(27) =339336920a(28) =487306673

External references