Number of length n+1 0..2 arrays with the sum of the cubes of adjacent differences multiplied by some arrangement of +-1 equal to zero.
A250223
Number of length n+1 0..2 arrays with the sum of the cubes of adjacent differences multiplied by some arrangement of +-1 equal to zero.
Terms
- a(0) =3a(1) =11a(2) =27a(3) =79a(4) =223a(5) =651a(6) =1907a(7) =5639a(8) =16967a(9) =52131a(10) =163291a(11) =518687a(12) =1659887a(13) =5320123a(14) =17004227a(15) =54054071a(16) =170674327a(17) =535082323a(18) =1666053035a(19) =5154907599a(20) =15861068351a(21) =48568847467a(22) =148122439315a(23) =450214152039
External references
- oeis: A250223