A033704 Fancy primitive repdigit polygonal numbers.

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

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 A295726 A034718

Adjacent sequences: A033701 A033702 A033703 * A033705 A033706 A033707

Keyword

nonn

Author

Mike Keith (domnei(AT)aol.com)

Status

approved