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A038240
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Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*10^j.
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0
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1, 4, 10, 16, 80, 100, 64, 480, 1200, 1000, 256, 2560, 9600, 16000, 10000, 1024, 12800, 64000, 160000, 200000, 100000, 4096, 61440, 384000, 1280000, 2400000, 2400000, 1000000, 16384, 286720, 2150400, 8960000, 22400000, 33600000
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listen;
history;
text;
internal format)
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OFFSET
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0,2
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REFERENCES
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B. N. Cyvin et al., Isomer enumeration of unbranched catacondensed polygonal systems with pentagons and heptagons, Match, No. 34 (Oct 1996), pp. 109-121.
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LINKS
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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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