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A119234 Triangular numbers composed of digits {6,8,9}. 2
6, 66, 666, 68898988866, 88698868996686886, 696999969866686966889999889666 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
a(7) > 10^37. - Max Alekseyev, Apr 30 2010
a(7) > 10^40. - Tyler Busby, Mar 29 2023
LINKS
FORMULA
a(n) = A000217(A119235(n)). - Michel Marcus, Mar 27 2023
CROSSREFS
Cf. A000217, A053975, A119235. See A119033 for a table of cross-references.
Sequence in context: A119160 A119210 A227220 * A119232 A186675 A186673
KEYWORD
nonn,base,more
AUTHOR
Giovanni Resta, May 10 2006
STATUS
approved

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Last modified March 29 01:36 EDT 2024. Contains 371264 sequences. (Running on oeis4.)