Number of nondecreasing arrangements of n numbers in -(n+5)..(n+5) with sum zero and not more than two numbers equal.
A188234
Number of nondecreasing arrangements of n numbers in -(n+5)..(n+5) with sum zero and not more than two numbers equal.
Terms
- a(0) =1a(1) =8a(2) =40a(3) =234a(4) =1317a(5) =7435a(6) =41748a(7) =234413a(8) =1316060a(9) =7395049a(10) =41601836a(11) =234385104a(12) =1322693568a(13) =7477225191a(14) =42343586740a(15) =240215460615
External references
- oeis: A188234