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A101227 Number of solutions to equation n=x+largest digit of x, n>1. 0
1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 0, 2, 0, 2, 0, 2, 0, 1, 0, 2, 1, 2, 0, 2, 0, 2, 0, 1, 0, 1, 1, 2, 1, 2, 0, 2, 0, 1, 0, 1, 0, 2, 1, 2, 1, 2, 0, 1, 0, 1, 0, 1, 1, 2, 1, 2, 1, 1, 0, 1, 0, 1, 0, 2, 1, 2, 1, 1, 1, 1, 0, 1, 0, 1, 1, 2, 1, 1, 1, 1, 1, 1, 0, 1, 0, 2, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,11
COMMENTS
In A045844, a sequence is defined by a rule a(n+1) = a(n) + largest digit of a(n); a(0) = 1. As usually in such cases, direct transformation is unique, while reverse one is not. Here the number of possible "previous" terms is given for each n.
LINKS
EXAMPLE
a(12)=2 because 12=6+6 and 12=11+1; a(101)=2 because 101=92+9 and 101=100+1; note offset=2.
CROSSREFS
Cf. A045844.
Sequence in context: A277152 A230106 A096972 * A277162 A230103 A267602
KEYWORD
base,easy,nonn
AUTHOR
Zak Seidov, Jan 22 2005
STATUS
approved

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Last modified May 20 12:18 EDT 2024. Contains 372712 sequences. (Running on oeis4.)