A triangular sequence based on second integer differential using columns n and rows m, in the ChebyshevT T(n,m): d20(n,m)=T(n+2,m)-2*T(n+1,m)+T(n,m); d02(n,m)=T(n,m+2)-2*T(n,m+1)+T(n,m); D2(n,m)=d20(n,m)+d02(n,m).
A140877
A triangular sequence based on second integer differential using columns n and rows m, in the ChebyshevT T(n,m): d20(n,m)=T(n+2,m)-2*T(n+1,m)+T(n,m); d02(n,m)=T(n,m+2)-2*T(n,m+1)+T(n,m); D2(n,m)=d20(n,m)+d02(n,m).
Terms
- a(0) =4a(1) =-7a(2) =6a(3) =-8a(4) =-17a(5) =4a(6) =17a(7) =-22a(8) =-44a(9) =-16a(10) =12a(11) =51a(12) =-48a(13) =-120a(14) =-96a(15) =-31a(16) =46a(17) =146a(18) =-80a(19) =-336a(20) =-352a(21) =-16a(22) =-113a(23) =140a(24) =412a(25) =-64a(26) =-944a(27) =-1088a(28) =49a(29) =-78
External references
- oeis: A140877