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A038306 Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*4^j. 0
1, 10, 4, 100, 80, 16, 1000, 1200, 480, 64, 10000, 16000, 9600, 2560, 256, 100000, 200000, 160000, 64000, 12800, 1024, 1000000, 2400000, 2400000, 1280000, 384000, 61440, 4096, 10000000, 28000000, 33600000, 22400000, 8960000 (list; table; graph; refs; listen; history; text; 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.

LINKS

Table of n, a(n) for n=0..32.

CROSSREFS

Sequence in context: A232908 A216653 A267180 * A317597 A320938 A117256

Adjacent sequences:  A038303 A038304 A038305 * A038307 A038308 A038309

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified June 16 14:56 EDT 2019. Contains 324152 sequences. (Running on oeis4.)