Number of 0..4 arrays x(0..n) of n+1 elements with zero n-1st differences.
A200078
Number of 0..4 arrays x(0..n) of n+1 elements with zero n-1st differences.
Terms
- a(0) =1a(1) =5a(2) =9a(3) =17a(4) =27a(5) =37a(6) =85a(7) =169a(8) =151a(9) =219a(10) =533a(11) =1553a(12) =2333a(13) =4197a(14) =2607a(15) =2419a(16) =6343a(17) =25235a(18) =55337a(19) =113875a(20) =35671
External references
- oeis: A200078