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A129636 Triangle T(n,k): base-3 digit sum of the Pascal type triangle A102363(n,k). 1
1, 2, 1, 2, 3, 3, 4, 1, 2, 3, 4, 5, 3, 1, 3, 4, 3, 4, 4, 4, 3, 4, 5, 7, 4, 6, 5, 5, 6, 5, 4, 7, 4, 7, 4, 3, 4, 5, 5, 7, 7, 7, 9, 7, 7, 8, 3, 4, 6, 8, 4, 4, 4, 6, 7, 8, 9, 5, 4, 8, 8, 8, 6, 8, 7, 9, 10, 9, 10, 7, 4, 6, 8, 10, 8 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..74.

FORMULA

a(n) = A053735(A102363(n,k)). - R. J. Mathar, Sep 09 2011

EXAMPLE

..............1......................1........................1

.............2.3....................2.10.....................2.1

............4.5.7.................11.12.21..................2.3.3

...........8.9.12.15............22.100.110.120.............4.1.2.3

MAPLE

A053735 := proc(n) add(d, d=convert(n, base, 3)) ; end proc:

A102363 := proc(n, k) if k=0 then 2^n elif k=n then 2^(n+1)-1 else procname(n-1, k)+procname(n-1, k-1) end if; end proc:

A129636 := proc(n, k) A053735(A102363(n, k)) ; end proc: # R. J. Mathar, Sep 09 2011

CROSSREFS

Cf. A102363.

Sequence in context: A161269 A100405 A081366 * A242443 A214154 A048219

Adjacent sequences:  A129633 A129634 A129635 * A129637 A129638 A129639

KEYWORD

base,nonn,tabl

AUTHOR

David G. Williams (davidwilliams(AT)paxway.com), Jun 09 2007

EXTENSIONS

Corrected by R. J. Mathar, Sep 09 2011

STATUS

approved

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Last modified June 13 05:16 EDT 2021. Contains 344981 sequences. (Running on oeis4.)