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A038217
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Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*11^j.
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0
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1, 2, 11, 4, 44, 121, 8, 132, 726, 1331, 16, 352, 2904, 10648, 14641, 32, 880, 9680, 53240, 146410, 161051, 64, 2112, 29040, 212960, 878460, 1932612, 1771561, 128, 4928, 81312, 745360, 4099480, 13528284, 24801854, 19487171, 256, 11264
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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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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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