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.
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