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A045914 Triangular numbers with all digits the same. 0
1, 3, 6, 55, 66, 666 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

REFERENCES

D. Ballew and R. Weger, Repdigit triangular numbers, J. Rec. Math. Vol. 8(2), p. 96, 1975-76.

CROSSREFS

Sequence in context: A066569 A051641 A003098 * A067610 A067609 A012473

Adjacent sequences:  A045911 A045912 A045913 * A045915 A045916 A045917

KEYWORD

fini,full,nonn,base

AUTHOR

Felice Russo (frusso(AT)micron.com)

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Last modified February 15 11:21 EST 2012. Contains 205777 sequences.