[seqfan] Sequences related to A047999 ( Sierpinski triangle)
Jeremy Gardiner
jeremy.gardiner at btinternet.com
Thu Mar 25 08:58:01 CET 2010
Probably already familiar to most people on the list, still maybe 'nice'
enough to be worth posting:
Starting 1,0,0,0,... Form partial sums mod k and repeat.
Files for k=2,3,5
http://www.jeremy.gardiner.btinternet.co.uk/maths/psum2.pdf
http://www.jeremy.gardiner.btinternet.co.uk/maths/psum3.pdf
http://www.jeremy.gardiner.btinternet.co.uk/maths/psum5.pdf
Also text versions and generating program in BASIC
http://www.jeremy.gardiner.btinternet.co.uk/maths/psum2.txt
http://www.jeremy.gardiner.btinternet.co.uk/maths/psum3.txt
http://www.jeremy.gardiner.btinternet.co.uk/maths/psum5.txt
http://www.jeremy.gardiner.btinternet.co.uk/maths/psums.bas
Perhaps these or something like them are candidates for a "core" set of
sequences, as suggested recently by Charles Greathouse (at least for
periodic sequences)?
Jeremy
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