Number of length 3+2 0..n arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.

A250562

Number of length 3+2 0..n arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero.

Terms

    a(0) =14a(1) =83a(2) =302a(3) =761a(4) =1648a(5) =3125a(6) =5446a(7) =8843a(8) =13662a(9) =20173a(10) =28836a(11) =39973a(12) =54102a(13) =71647a(14) =93210a(15) =119221a(16) =150416a(17) =187305a(18) =230650a(19) =281051a(20) =339378a(21) =406245a(22) =482652a(23) =569257a(24) =667098a(25) =776983a(26) =900018a(27) =1036969a(28) =1189124a(29) =1357341

External references