Number of -6..6 arrays x(0..n-1) of n elements with zero sum and no element more than one greater than the previous.

A199845

Number of -6..6 arrays x(0..n-1) of n elements with zero sum and no element more than one greater than the previous.

Terms

    a(0) =1a(1) =7a(2) =32a(3) =149a(4) =630a(5) =2600a(6) =10426a(7) =41079a(8) =159330a(9) =611698a(10) =2329458a(11) =8818874a(12) =33234990a(13) =124835120a(14) =467743203a(15) =1749482957a(16) =6535398559a(17) =24393753898a(18) =91006458115a(19) =339442473410

External references