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Search: id:A125318
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| A125318 |
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Number of base 8 circular n-digit numbers with adjacent digits differing by 3 or less. |
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+0
1
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| 1, 8, 44, 212, 1156, 6428, 36338, 206942, 1183164, 6777860, 38866134, 222980282, 1279588414, 7343932838, 42151639560, 241943513252, 1388738207756, 7971319975484, 45755345035400, 262636025020328, 1507534275820126
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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[Empirical] a(base,n)=a(base-1,n)+A025012(n+1) for base>=3.int(n/2)+1
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PROGRAM
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(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>3)+($[(i+1)mod N]`-$[i]`>3))
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CROSSREFS
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Sequence in context: A003518 A100575 A003220 this_sequence A000373 A082762 A147828
Adjacent sequences: A125315 A125316 A125317 this_sequence A125319 A125320 A125321
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KEYWORD
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nonn
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AUTHOR
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Ron Hardin (rhhardin(AT)att.net), Dec 28 2006
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