Triangle, read by rows: T(n,k) = (1/2)*Sum_{j=0..2^n-1} j^k for k=0..n-1, n>=1; related to the Prouhet-Tarry-Escott problem.
A140047
Triangle, read by rows: T(n,k) = (1/2)*Sum_{j=0..2^n-1} j^k for k=0..n-1, n>=1; related to the Prouhet-Tarry-Escott problem.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =4a(4) =14a(5) =70a(6) =8a(7) =60a(8) =620a(9) =7200a(10) =16a(11) =248a(12) =5208a(13) =123008a(14) =3098760a(15) =32a(16) =1008a(17) =42672a(18) =2032128a(19) =103223568a(20) =5461682688a(21) =64a(22) =4064a(23) =345440a(24) =33032192a(25) =3369214496a(26) =357969864704a(28) =128a(29) =16320a(30) =2779840
External references
- oeis: A140047