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A119095 Triangular numbers composed of digits {0,8,9}. 2
990, 809809890, 89909089088809980, 98899080989088808000999800 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
a(5) > 10^41. - Tyler Busby, Mar 28 2023
LINKS
Table of n, a(n) for n=1..4.
Giovanni Resta, Tridigital Triangular Numbers.
FORMULA
a(n) = A000217(A119096(n)). - Tyler Busby, Mar 28 2023
CROSSREFS
Cf. A000217, A058456, A119096. See A119033 for a table of cross-references.
Sequence in context: A218133 A295433 A068301 * A119077 A119057 A218401
Adjacent sequences: A119092 A119093 A119094 * A119096 A119097 A119098
KEYWORD
nonn,base,more
AUTHOR
Giovanni Resta, May 10 2006
STATUS
approved

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Last modified May 13 23:15 EDT 2024. Contains 372524 sequences. (Running on oeis4.)