A069138
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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A069138: Triangle formed by multiplying Stirling numbers of 2nd kind S2(n,m) (A008277) by m+1.
(identification, match triangle)
A008277 → θ+2 (shift +1)2 · 2, 3 · 2, 9, 4 · 2, 21, 24, 5 … row sums 2, 5, 15, 52, 203, 877, 4140, 21147, …
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A008277 → θ+2 (shift +1) → reverse
(match reversed triangle)
2 · 3, 2 · 4, 9, 2 · 5, 24, 21, 2 … row sums 2, 5, 15, 52, 203, 877, 4140, 21147, …
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A106800 → reverse (shift +1) → θ+1
(match triangle)
1 · 0, 2 · 0, 2, 3 · 0, 2, 9, 4 … row sums 1, 2, 5, 15, 52, 203, 877, 4140, …