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A119057
Triangular numbers composed of digits {0,2,9}.
2
990, 2090209222020090, 92209290022092090, 200290202090990220, 222020200990922029290
OFFSET
1,1
COMMENTS
a(6) > 10^40. - Tyler Busby, Mar 28 2023
FORMULA
a(n) = A000217(A119058(n)). - Michel Marcus, Mar 27 2023
CROSSREFS
Cf. A000217, A058428, A119058. See A119033 for a table of cross-references.
Sequence in context: A068301 A119095 A119077 * A218401 A053393 A365598
KEYWORD
nonn,base,more
AUTHOR
Giovanni Resta, May 10 2006
STATUS
approved