A126527 Number of base 32 n-digit numbers with adjacent digits differing by four or less.

1, 32, 268, 2292, 19748, 170904, 1483284, 12899556, 112350184, 979640156, 8549531716, 74665238648, 652426700120, 5703387501520, 49875030912772, 436266613941484, 3816936851122500, 33400491065984904, 292314430831005104

Offset: 0

Author

R. H. Hardin, Dec 28 2006

Keywords

• nonn
• base

Comments

[Empirical] a(base,n)=a(base-1,n)+9^(n-1) for base>=4n-3; a(base,n)=a(base-1,n)+9^(n-1)-2 when base=4n-4

Crossrefs

Cf. Base 32 differing by three or less A126500, two or less A126419, one or less A126386.