The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A038305 Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*3^j. 1
 1, 10, 3, 100, 60, 9, 1000, 900, 270, 27, 10000, 12000, 5400, 1080, 81, 100000, 150000, 90000, 27000, 4050, 243, 1000000, 1800000, 1350000, 540000, 121500, 14580, 729, 10000000, 21000000, 18900000, 9450000, 2835000, 510300, 51030 (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 Harvey P. Dale, Table of n, a(n) for n = 0..1000 MATHEMATICA Table[Binomial[i, j]10^(i-j) 3^j, {i, 0, 10}, {j, 0, i}]//Flatten (* Harvey P. Dale, Aug 19 2018 *) CROSSREFS Sequence in context: A111126 A165790 A077194 * A089478 A028967 A097530 Adjacent sequences:  A038302 A038303 A038304 * A038306 A038307 A038308 KEYWORD nonn,tabl,easy AUTHOR STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 4 01:28 EDT 2020. Contains 336201 sequences. (Running on oeis4.)