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A119065 Triangular numbers composed of digits {0,3,7}. 2
3, 300, 703, 3003, 300700, 7777333333770, 30770737700703, 7707033303703300, 77300377037737303073770, 3073770307037370707370300003, 33000770070773300000703773730, 770037773370037377077730333003 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..12.

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A119066. See A119033 for a table of cross-references.

Sequence in context: A334177 A303388 A328044 * A119069 A119059 A119049

Adjacent sequences:  A119062 A119063 A119064 * A119066 A119067 A119068

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, May 10 2006

STATUS

approved

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Last modified January 17 02:12 EST 2022. Contains 350377 sequences. (Running on oeis4.)