**Numbers n such that the decimal representation of n is contained as substring in that of the n-th triangular number.**

*1, 5, 19, 25, 199, 625, 1999, 2102, 5582, 9376, 9909, 10100, 16833, 19999, 41012*

*5 seqfan posts*

*Wed Jul 28 20:25:39 CEST 2010* [seqfan] Re: Numbers n such that the decimal representation of n is contained as substring in that of the n-th pentagonal number.

*Tue Jul 27 12:19:12 CEST 2010* [seqfan] Re: Numbers n such that the decimal representation of n is contained as substring in that of the n-th pentagonal number.

*Tue Jul 27 03:22:34 CEST 2010* [seqfan] Re: Numbers n such that the decimal representation of n is contained as substring in that of the n-th pentagonal number.

*Tue Jul 27 03:12:01 CEST 2010* [seqfan] Re: Numbers n such that the decimal representation of n is contained as substring in that of the n-th pentagonal number.

*Tue Jul 27 02:45:24 CEST 2010* [seqfan] Numbers n such that the decimal representation of n is contained as substring in that of the n-th pentagonal number.

Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword

Links to OEIS content are included according to
The OEIS End-User License Agreement
.