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A119053 Triangular numbers composed of digits {0,2,6}. 2
6, 66, 666, 66066, 600060, 6626620, 2620626606, 2200022662006, 626622226002066066, 66006260060666006026, 20066002660020662200026, 222220220206620206202066, 22222002022666602062066226, 66222600026062602006000600, 20666666202602626260022660266 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..15.

G. Resta, Tridigital Triangular Numbers

FORMULA

a(n) = A000217(A119054(n))

CROSSREFS

Cf. A000217, A119054. See A119033 for a table of cross-references.

Sequence in context: A119087 A119212 A068643 * A119089 A036523 A112902

Adjacent sequences: A119050 A119051 A119052 * A119054 A119055 A119056

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, May 10 2006

EXTENSIONS

a(14)-a(15) from Max Alekseyev, Aug 26 2013

STATUS

approved

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Last modified February 3 20:48 EST 2023. Contains 360044 sequences. (Running on oeis4.)