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A126378
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Number of base 24 n-digit numbers with adjacent digits differing by one or less.
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4
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1, 24, 70, 206, 608, 1798, 5324, 15780, 46806, 138918, 412508, 1225432, 3641690, 10825628, 32190154, 95741294, 284820048, 847475910, 2522096172, 7507000776, 22347852666, 66537181776, 198128815230, 590039959434, 1757365514652
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| [Empirical] a(base,n)=a(base-1,n)+3^(n-1) for base>=n; a(base,n)=a(base-1,n)+3^(n-1)-2 when base=n-1
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PROG
| (S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-2](($[i]`-$[i+1]`>1)+($[i+1]`-$[i]`>1))
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CROSSREFS
| Sequence in context: A051876 A069174 A124717 * A006352 A143337 A183006
Adjacent sequences: A126375 A126376 A126377 * A126379 A126380 A126381
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KEYWORD
| nonn,base
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AUTHOR
| R. H. Hardin (rhhardin(AT)att.net), Dec 26 2006
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