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A033702 Number of polygonal numbers which are n-digit repdigits. 1
17, 27, 32, 28, 26, 37, 26, 29, 35, 28, 27, 38, 29, 29, 34, 33, 26, 37, 26, 31, 35, 27, 26, 36, 27, 31, 36, 29, 28, 37, 26, 30, 35, 27, 27, 41, 26, 31, 34, 29, 27, 38, 27, 31, 40, 29, 27, 37, 28, 29 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..50.

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

CROSSREFS

Sequence in context: A166658 A268330 A221282 * A000797 A171168 A147202

Adjacent sequences:  A033699 A033700 A033701 * A033703 A033704 A033705

KEYWORD

nonn,base

AUTHOR

Mike Keith (domnei(AT)aol.com)

STATUS

approved

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Last modified April 23 23:17 EDT 2017. Contains 285329 sequences.