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A033704 Fancy primitive repdigit polygonal numbers. 1
6, 9, 22, 55, 66, 88, 111, 222, 333, 444, 555, 666, 777, 888, 6666, 44444, 111111, 777777, 999999, 111111111, 777777777, 9999999999, 333333333333, 555555555555, 1111111111111, 888888888888888, 1111111111111111, 2222222222222222, 3333333333333333 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert G. Wilson v, Table of n, a(n) for n = 1..53 (from Keith's paper)

M. Keith, On Repdigit Polygonal Numbers, J. Integer Sequences, Vol. 1, 1998, #6.

CROSSREFS

Cf. A033705, A033706, A033707.

Sequence in context: A112393 A006132 A033705 * A121592 A034718 A215528

Adjacent sequences:  A033701 A033702 A033703 * A033705 A033706 A033707

KEYWORD

nonn

AUTHOR

Mike Keith (domnei(AT)aol.com)

STATUS

approved

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Last modified March 28 02:40 EDT 2017. Contains 284182 sequences.