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

A250313

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

Terms

    a(0) =2a(1) =8a(2) =8a(3) =24a(4) =42a(5) =104a(6) =212a(7) =464a(8) =950a(9) =1968a(10) =3984a(11) =8072a(12) =16226a(13) =32600a(14) =65324a(15) =130848a(16) =261870a(17) =524000a(18) =1048232a(19) =2096792a(20) =4193882a(21) =8388168a(22) =16776708a(23) =33553904a(24) =67108262a(25) =134217104a(26) =268434752a(27) =536870184a(28) =1073741010a(29) =2147482808

External references