Number of -n..n arrays x(0..5) of 6 elements with zero sum and nonzero first and second differences.

A200458

Number of -n..n arrays x(0..5) of 6 elements with zero sum and nonzero first and second differences.

Terms

    a(0) =10a(1) =486a(2) =3788a(3) =16380a(4) =50852a(5) =127988a(6) =278906a(7) =547518a(8) =991740a(9) =1686602a(10) =2726152a(11) =4224676a(12) =6319970a(13) =9175294a(14) =12980046a(15) =17954222a(16) =24348932a(17) =32448240a(18) =42572590a(19) =55080404a(20) =70369230a(21) =88879322a(22) =111095332a(23) =137546940a(24) =168813148a(25) =205524308

External references