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Search: id:A038281
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| A038281 |
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Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*3^j. |
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+0
1
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| 1, 8, 3, 64, 48, 9, 512, 576, 216, 27, 4096, 6144, 3456, 864, 81, 32768, 61440, 46080, 17280, 3240, 243, 262144, 589824, 552960, 276480, 77760, 11664, 729, 2097152, 5505024, 6193152, 3870720, 1451520, 326592, 40824, 2187, 16777216
(list; graph; listen)
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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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Sequence in context: A137481 A004734 A049074 this_sequence A131502 A100253 A088397
Adjacent sequences: A038278 A038279 A038280 this_sequence A038282 A038283 A038284
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KEYWORD
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nonn,tabf,easy
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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