OFFSET
1,2
COMMENTS
Computed by Robert G. Wilson v.
a(18) > 2581988897472. - Donovan Johnson, Sep 29 2011
a(31) > 81649658092772603272. - Patrick De Geest, May 23 2021
LINKS
Patrick De Geest, Table of n, a(n) for n = 1..30
Terry Trotter, Polygonal numbers [numbers >=920 on this page were incorrect when accessed Sep 25 2011] [Warning: As of March 2018 this site appears to have been hacked. Proceed with great caution. The original content should be retrieved from the Wayback machine and added here. - N. J. A. Sloane, Mar 29 2018]
Terry Trotter, Polygonal Numbers, from the Wayback machine
Patrick De Geest, Palindromic Centered Polygonal Numbers
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Kausthub Gudipati, Sep 25 2011
EXTENSIONS
a(14) from D. S. McNeil, Sep 26 2011
a(15)-a(17) from Donovan Johnson, Sep 29 2011
a(18)-a(30) from Patrick De Geest, May 23 2021
STATUS
approved