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A218390 Triangular numbers composed of digits {0,2,4}. 2
40002040, 2442040424202042204020040, 24202244424402424242222220, 200020020000400442044244444400204400200 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
a(5) > 10^40.
LINKS
FORMULA
a(n) = A000217(A218389(n)).
CROSSREFS
Cf. A000217, A218389. See A119033 for a table of cross-references.
Sequence in context: A198809 A181727 A307477 * A186617 A186960 A186571
KEYWORD
base,nonn,more
AUTHOR
Max Alekseyev, Oct 27 2012
STATUS
approved

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Last modified April 20 17:12 EDT 2024. Contains 371845 sequences. (Running on oeis4.)