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A048220 a(n)=least m such that column m of T contains n, array T given by A048212. 0
1, 1, 2, 1, 2, 1, 3, 1, 1, 2, 3, 1, 4, 2, 1, 1, 2, 3, 4, 1, 5, 1, 3, 1, 1, 1, 4, 5, 3, 6, 2, 1, 1, 1, 4, 3, 1, 1, 5, 6, 1, 7, 3, 4, 1, 2, 1, 1, 2, 5, 3, 4, 1, 6, 7, 1, 8, 3, 1, 5, 1, 1, 4, 1, 2, 6, 2, 1, 1, 7, 8, 5, 9, 1, 3, 1, 1, 1, 2, 6, 1, 4, 3, 1, 5, 7, 1, 1, 1, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..90.

CROSSREFS

Sequence in context: A303755 A321279 A294882 * A182593 A201167 A202853

Adjacent sequences:  A048217 A048218 A048219 * A048221 A048222 A048223

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 21 18:38 EDT 2019. Contains 326168 sequences. (Running on oeis4.)