Number of length 7+1 0..n arrays with the sum of the squares of adjacent differences multiplied by some arrangement of +-1 equal to zero.

A250282

Number of length 7+1 0..n arrays with the sum of the squares of adjacent differences multiplied by some arrangement of +-1 equal to zero.

Terms

    a(0) =128a(1) =2763a(2) =20252a(3) =107387a(4) =381812a(5) =1154141a(6) =2908232a(7) =6704631a(8) =13816144a(9) =26741121a(10) =48197940a(11) =83583525a(12) =137527528a(13) =219303553a(14) =336659016a(15) =505804957a(16) =737614588a(17) =1056435849a(18) =1478402044a(19) =2041032531a(20) =2764805264

External references