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Search: id:A125395
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| A125395 |
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Number of base 32 circular n-digit numbers with adjacent digits differing by 5 or less. |
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+0
1
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| 1, 32, 322, 2582, 24262, 231582, 2264020, 22435984, 224750110, 2269946654, 23077019532, 235861678040, 2421311651824, 24948931934504, 257880638608460, 2672736469957992, 27765463773130590, 289023466154180810
(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)+F(5) for base>=5.int(n/2)+1, and F(d) is the largest coefficient in (1+x+...+x^(2d))^n
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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]`-$[(i+1)mod N]`>5)+($[(i+1)mod N]`-$[i]`>5))
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CROSSREFS
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Sequence in context: A095152 A087342 A083468 this_sequence A126553 A009797 A111450
Adjacent sequences: A125392 A125393 A125394 this_sequence A125396 A125397 A125398
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KEYWORD
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nonn
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AUTHOR
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Ron Hardin (rhh(AT)cadence.com), Dec 28 2006
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