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A038238 Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*8^j. 0
1, 4, 8, 16, 64, 64, 64, 384, 768, 512, 256, 2048, 6144, 8192, 4096, 1024, 10240, 40960, 81920, 81920, 32768, 4096, 49152, 245760, 655360, 983040, 786432, 262144, 16384, 229376, 1376256, 4587520, 9175040, 11010048, 7340032, 2097152 (list; table; graph; refs; listen; history; internal format)
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: A065978 A077447 A102358 * A023376 A038110 A130436

Adjacent sequences:  A038235 A038236 A038237 * A038239 A038240 A038241

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 23:08 EST 2012. Contains 206085 sequences.