Number of -n..n arrays x(0..5) of 6 elements with zero sum, and adjacent elements not both strictly positive and not both strictly negative.
A199901
Number of -n..n arrays x(0..5) of 6 elements with zero sum, and adjacent elements not both strictly positive and not both strictly negative.
Terms
- a(0) =75a(1) =533a(2) =2035a(3) =5725a(4) =13363a(5) =27457a(6) =51395a(7) =89577a(8) =147547a(9) =232125a(10) =351539a(11) =515557a(12) =735619a(13) =1024969a(14) =1398787a(15) =1874321a(16) =2471019a(17) =3210661a(18) =4117491a(19) =5218349a(20) =6542803a(21) =8123281a(22) =9995203a(23) =12197113a(24) =14770811a(25) =17761485a(26) =21217843a(27) =25192245a(28) =29740835
External references
- oeis: A199901