perplexus.info :: Numbers : Words count

Words count (Posted on 2014-03-25)

(D3)How many subsets of (a,b,c, … x,y,z) contain no letters neighboring each other in the English ABC (26 letters)?

(D4)How many "words" (i.e, ordered subsets from (a,b,c, … x,y,z)) contain no neighboring letters that neighbor each other in the English ABC (26 letters)?

No Solution Yet Submitted by Ady TZIDON

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Subject	Author	Date
re(3): Solution	Jer	2014-03-26 09:21:08
re: solution to part 1; thoughts on part 2	tomarken	2014-03-26 09:01:02
re(2): solution to part 1; thoughts on part 2	Charlie	2014-03-26 08:55:42
re: solution to part 1; thoughts on part 2	Ady TZIDON	2014-03-26 02:25:38
solution to part 1; thoughts on part 2	Charlie	2014-03-25 15:41:33
re(2): Solution	Charlie	2014-03-25 15:39:29
re: Solution	Jer	2014-03-25 15:00:05
Solution	Jer	2014-03-25 13:09:33

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