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A125410
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Number of base 22 circular n-digit numbers with adjacent digits differing by 6 or less.
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0
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1, 22, 244, 2248, 24016, 261752, 2919034, 32990658, 376556856, 4328386504, 50008371494, 579919916598, 6743056184086, 78556922876506, 916464308940970, 10702363917790958, 125070290398105880, 1462347648998782744
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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(6) for base>=6.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]`-$[(i+1)mod N]`>6)+($[(i+1)mod N]`-$[i]`>6))
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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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