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A084854
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Triangular array, read by rows: T(n,k) = concatenated decimal representations of n and k, 1<=k<=n.
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6
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11, 21, 22, 31, 32, 33, 41, 42, 43, 44, 51, 52, 53, 54, 55, 61, 62, 63, 64, 65, 66, 71, 72, 73, 74, 75, 76, 77, 81, 82, 83, 84, 85, 86, 87, 88, 91, 92, 93, 94, 95, 96, 97, 98, 99, 101, 102, 103, 104, 105, 106, 107, 108, 109, 1010, 111, 112, 113, 114, 115, 116, 117, 118, 119, 1110, 1111
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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FORMULA
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PROG
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(Python)
def T(n, k): return int(str(n) + str(k))
def auptorow(maxrow):
return [T(n, k) for n in range(1, maxrow+1) for k in range(1, n+1)]
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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