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A125457
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Number of base 22 circular n-digit numbers with adjacent digits differing by 8 or less.
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0
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1, 22, 302, 3550, 47870, 659542, 9265904, 131528076, 1878769126, 26934314962, 386950683142, 5565891772078, 80115953724392, 1153662520101308, 16616496401513996, 239363596125252280, 3448339679603524870
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OFFSET
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0,2
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COMMENTS
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[Empirical] a(base,n)=a(base-1,n)+F(8) for base>=8.int(n/2)+1 and F(d) is the largest coefficient in (1+x+...+x^(2d))^n
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LINKS
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PROG
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(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>8)+($[(i+1)mod N]`-$[i]`>8))
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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