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 A202389 Triangle T(n,k), read by rows, given by (1, -2, 1, 0, 0, 0, 0, 0, 0, 0, ...) DELTA (1, 1, -1, 0, 0, 0, 0, 0, 0, 0, ...) where DELTA is the operator defined in A084938. 1
 1, 1, 1, -1, 1, 2, -1, -2, 2, 3, 1, -2, -5, 3, 5, 1, 3, -5, -10, 5, 8, -1, 3, 9, -10, -20, 8, 13, -1, -4, 9, 22, -20, -38, 13, 21, 1, -4, -14, 22, 51, -38, -71, 21, 34, 1, 5, -14, -40, 51, 111, -71, -130, 34, 55 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,6 COMMENTS T(n,n) = A000045(n+1) = Fibonacci(n+1). LINKS FORMULA T(n,k) = T(n-1,k-1) + T(n-2,k-2) - T(n-2,k) with T(0,0) = T(1,0) = T(1,1) = 1 and T(n,k) = 0 if k<0 or if n

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Last modified January 18 08:26 EST 2021. Contains 340250 sequences. (Running on oeis4.)