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A119158 Triangular numbers composed of digits {2,4,5}. 2
45, 55, 25425, 255255, 22542255, 244525555, 2245524452445, 2445254445525, 5255545252454245, 444222245455224445, 4544525455555255444225 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Next entry must be greater than 10^32.

LINKS

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A031152, A119159. See A119033 for a table of cross-references.

Sequence in context: A119208 A068812 A119071 * A119204 A119206 A060463

Adjacent sequences:  A119155 A119156 A119157 * A119159 A119160 A119161

KEYWORD

nonn,base,more

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006

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Last modified February 15 19:15 EST 2012. Contains 205852 sequences.