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A119111 Triangular numbers composed of digits {1,3,4}. 2
1, 3, 1431, 33411, 331441131, 1444343131, 13113334431, 31444341333441, 111413314441131, 444334341314331, 11114441143333344141, 331341331134344133331, 4443314433131433343331311434133434431331 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
a(14) > 10^41. - Tyler Busby, Mar 27 2023
LINKS
FORMULA
a(n) = A000217(A119112(n)). - Tyler Busby, Mar 27 2023
CROSSREFS
Cf. A000217, A053891, A119112. See A119033 for a table of cross-references.
Sequence in context: A036066 A262516 A060307 * A233195 A219783 A264427
KEYWORD
nonn,base,more
AUTHOR
Giovanni Resta, May 10 2006
EXTENSIONS
a(13) from Tyler Busby, Mar 27 2023
STATUS
approved

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)