### References to geology

*3 seqfan posts*

*Sun Sep 26 06:48:14 CEST 2010* [seqfan] Re: n-th number whose sum of divisors is a n-gonal number

*Sun Sep 26 05:22:18 CEST 2010* [seqfan] Re: n-th number whose sum of divisors is a n-gonal number

*Sun Sep 26 04:07:37 CEST 2010* [seqfan] Re: n-th number whose sum of divisors is a n-gonal number

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

geolog

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