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A119051 Triangular numbers composed of digits {0,2,5}. 2
55, 5050, 25200, 255255, 500500, 50005000, 525220255, 2250500505, 5000050000, 22052205055, 500000500000, 520022025225, 2205022050055, 2225205025200, 5220005220550, 50000005000000, 220500220500055, 550250022200005 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..18.

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A058426, A119052. See A119033 for a table of cross-references.

Sequence in context: A013537 A056567 A119081 * A119083 A037156 A116110

Adjacent sequences: A119048 A119049 A119050 * A119052 A119053 A119054

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, May 10 2006

STATUS

approved

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Last modified November 30 21:57 EST 2022. Contains 358453 sequences. (Running on oeis4.)