A299989
identification: the entry's rule defines the sequence for every index; tail: the sequence is the entry's tail after some prefix rows; match_*: finite agreement only.
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A299989: Triangle read by rows: T(n,0) = 0 for n >= 0; T(n,2*k+1) = A152842(2*n,2*(n-k)) and T(n,2*k) = A152842(2*n,2*(n-k)+1) for n >= k > 0.
(identification, match triangle)
0, 1 · 0, 3, 4, 1 · 0, 9, 24, 22, 8, 1 … row sums 1, 8, 64, 512, 4096, 32768, 262144, …