Number of -n..n arrays x(0..2) of 3 elements with sum zero and with zeroth through 2nd differences all nonzero.

A200039

Number of -n..n arrays x(0..2) of 3 elements with sum zero and with zeroth through 2nd differences all nonzero.

Terms

    a(0) =0a(1) =2a(2) =14a(3) =28a(4) =52a(5) =78a(6) =114a(7) =152a(8) =200a(9) =250a(10) =310a(11) =372a(12) =444a(13) =518a(14) =602a(15) =688a(16) =784a(17) =882a(18) =990a(19) =1100a(20) =1220a(21) =1342a(22) =1474a(23) =1608a(24) =1752a(25) =1898a(26) =2054a(27) =2212a(28) =2380a(29) =2550

External references