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A226253
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Number of ways of writing n as the sum of 9 triangular numbers.
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16
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1, 9, 36, 93, 198, 378, 633, 990, 1521, 2173, 2979, 4113, 5370, 6858, 8955, 11055, 13446, 16830, 20031, 23724, 28836, 33381, 38520, 45729, 52203, 59121, 68922, 77461, 86283, 99747, 110547, 121500, 138870, 152034, 166725, 188568, 204156, 221760, 248310, 268713, 289422, 321786, 345570, 369036
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OFFSET
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0,2
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LINKS
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FORMULA
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G.f. is 9th power of g.f. for A010054.
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CROSSREFS
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Number of ways of writing n as a sum of k triangular numbers, for k=1,...: A010054, A008441, A008443, A008438, A008439, A008440, A226252, A007331, A226253, A226254, A226255, A014787, A014809.
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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