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 A126551 Number of base 30 n-digit numbers with adjacent digits differing by five or less. 0
 1, 30, 300, 3080, 31910, 332332, 3472294, 36356914, 381225854, 4001308564, 42025251756, 441585511330, 4641438979272, 48795642652634, 513063278382886, 5395138052943334, 56736497174383966, 596680299580096756 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS [Empirical] a(base,n)=a(base-1,n)+11^(n-1) for base>=5n-4; a(base,n)=a(base-1,n)+11^(n-1)-2 when base=5n-5 LINKS Table of n, a(n) for n=0..17. PROG (S/R) stvar \$[N]:(0..M-1) init \$[]:=0 asgn \$[]->{*} kill +[i in 0..N-2]((\$[i]`-\$[i+1]`>5)+(\$[i+1]`-\$[i]`>5)) CROSSREFS Cf. Base 30 differing by four or less A126525, three or less A126498, two or less A126417, one or less A126384. Sequence in context: A101381 A061605 A125393 * A328751 A042750 A074994 Adjacent sequences: A126548 A126549 A126550 * A126552 A126553 A126554 KEYWORD nonn,base AUTHOR R. H. Hardin, Dec 28 2006 STATUS approved

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Last modified March 2 14:55 EST 2024. Contains 370493 sequences. (Running on oeis4.)