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A126419
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Number of base 32 n-digit numbers with adjacent digits differing by two or less.
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3
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1, 32, 154, 750, 3668, 17986, 88348, 434524, 2139230, 10540030, 51964360, 256332260, 1265027930, 6245522700, 30845183058, 152383470186, 753018119972, 3722010001906, 18401089523298, 90990129769076, 450009665618408
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| [Empirical] a(base,n)=a(base-1,n)+5^(n-1) for base>=2n-1; a(base,n)=a(base-1,n)+5^(n-1)-2 when base=2n-2
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PROG
| (S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-2](($[i]`-$[i+1]`>2)+($[i+1]`-$[i]`>2))
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CROSSREFS
| Cf. Base 32 differing by one or less A126386.
Sequence in context: A100172 A203557 A124998 * A197621 A035286 A197367
Adjacent sequences: A126416 A126417 A126418 * A126420 A126421 A126422
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KEYWORD
| nonn,base
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AUTHOR
| R. H. Hardin (rhhardin(AT)att.net), Dec 28 2006
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