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A038242 Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*12^j. +0
1
1, 4, 12, 16, 96, 144, 64, 576, 1728, 1728, 256, 3072, 13824, 27648, 20736, 1024, 15360, 92160, 276480, 414720, 248832, 4096, 73728, 552960, 2211840, 4976640, 5971968, 2985984, 16384, 344064, 3096576, 15482880, 46448640, 83607552 (list; table; graph; listen)
OFFSET

0,2

REFERENCES

B. N. Cyvin et al., Isomer enumeration of unbranched catacondensed polygonal systems with pentagons and heptagons, Match, No. 34 (Oct 1996), pp. 109-121.

CROSSREFS

Sequence in context: A075191 A028594 A066632 this_sequence A048661 A036047 A045042

Adjacent sequences: A038239 A038240 A038241 this_sequence A038243 A038244 A038245

KEYWORD

nonn,tabl,easy

AUTHOR

njas

page 1

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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