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A038304 Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*2^j. 0
1, 10, 2, 100, 40, 4, 1000, 600, 120, 8, 10000, 8000, 2400, 320, 16, 100000, 100000, 40000, 8000, 800, 32, 1000000, 1200000, 600000, 160000, 24000, 1920, 64, 10000000, 14000000, 8400000, 2800000, 560000, 67200, 4480, 128, 100000000 (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..36.

CROSSREFS

Sequence in context: A054841 A185076 A178643 * A290308 A159005 A144859

Adjacent sequences:  A038301 A038302 A038303 * A038305 A038306 A038307

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 22 21:17 EDT 2019. Contains 323504 sequences. (Running on oeis4.)