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 A126377 Number of base 23 n-digit numbers with adjacent digits differing by one or less. 4
 1, 23, 67, 197, 581, 1717, 5081, 15051, 44619, 132357, 392825, 1166383, 3464543, 10294187, 30595831, 90958325, 270471141, 804429189, 2392956009, 7119580287, 21185591199, 63050397375, 187668462027, 558658899825, 1663222335825 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 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 LINKS 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)) CROSSREFS Sequence in context: A069173 A124716 A139955 * A136064 A142302 A276262 Adjacent sequences:  A126374 A126375 A126376 * A126378 A126379 A126380 KEYWORD nonn,base AUTHOR R. H. Hardin, Dec 26 2006 STATUS approved

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Last modified November 26 07:49 EST 2020. Contains 338632 sequences. (Running on oeis4.)