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

A250554

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

Terms

    a(0) =2a(1) =8a(2) =14a(3) =32a(4) =62a(5) =128a(6) =254a(7) =512a(8) =1022a(9) =2048a(10) =4094a(11) =8192a(12) =16382a(13) =32768a(14) =65534a(15) =131072a(16) =262142a(17) =524288a(18) =1048574a(19) =2097152a(20) =4194302a(21) =8388608a(22) =16777214a(23) =33554432a(24) =67108862a(25) =134217728a(26) =268435454a(27) =536870912a(28) =1073741822a(29) =2147483648

External references