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A119069 Triangular numbers composed of digits {0,3,9}. 2
3, 300, 903, 990, 3003, 33930, 39903, 339900, 930930, 39033030, 990903903, 3909003990, 3993990000, 33003300903, 39999939903, 90993993300, 3390003090090, 99990099000330, 90009933903093903, 399939399933939330 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..20.

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A058434, A119070. See A119033 for a table of cross-references.

Sequence in context: A303388 A328044 A119065 * A119059 A119049 A119067

Adjacent sequences:  A119066 A119067 A119068 * A119070 A119071 A119072

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, May 10 2006

STATUS

approved

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Last modified January 22 09:05 EST 2022. Contains 350481 sequences. (Running on oeis4.)