Number of nondecreasing arrangements of 6 numbers in -(n+4)..(n+4) with sum zero and not more than two numbers equal.
A188239
Number of nondecreasing arrangements of 6 numbers in -(n+4)..(n+4) with sum zero and not more than two numbers equal.
Terms
- a(0) =245a(1) =527a(2) =1019a(3) =1818a(4) =3047a(5) =4859a(6) =7435a(7) =10994a(8) =15791a(9) =22121a(10) =30323a(11) =40782a(12) =53931a(13) =70257a(14) =90301a(15) =114662a(16) =143999a(17) =179037a(18) =220565a(19) =269444a(20) =326607a(21) =393061a(22) =469893a(23) =558272a(24) =659449a(25) =774765a(26) =905649a(27) =1053624a(28) =1220309a(29) =1407423
External references
- oeis: A188239