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A242312 Digital roots in Pascal's triangle, triangle read by rows, 0 <= k <= n. 3
1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 5, 1, 1, 5, 1, 1, 6, 6, 2, 6, 6, 1, 1, 7, 3, 8, 8, 3, 7, 1, 1, 8, 1, 2, 7, 2, 1, 8, 1, 1, 9, 9, 3, 9, 9, 3, 9, 9, 1, 1, 1, 9, 3, 3, 9, 3, 3, 9, 1, 1, 1, 2, 1, 3, 6, 3, 3, 6, 3, 1, 2, 1, 1, 3, 3, 4, 9, 9, 6, 9 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

T(n,k) = A010888(A007318(n,k)).

LINKS

Reinhard Zumkeller, Rows n = 0..125 of table, flattened

Index entries for triangles and arrays related to Pascal's triangle

FORMULA

T(n,k) = A010888(A096145(n,k)).

PROG

(Haskell)

a242312 n k = a242312_tabl !! n !! k

a242312_row n = a242312_tabl !! n

a242312_tabl = map (map a010888) a007318_tabl

CROSSREFS

Cf. A242314 (max per row).

Sequence in context: A140280 A140586 A095143 * A140279 A096145 A306309

Adjacent sequences:  A242309 A242310 A242311 * A242313 A242314 A242315

KEYWORD

nonn,tabl,base

AUTHOR

Reinhard Zumkeller, May 10 2014

STATUS

approved

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Last modified January 18 13:55 EST 2020. Contains 331010 sequences. (Running on oeis4.)