OFFSET
3,1
LINKS
Eric Weisstein's World of Mathematics, Polygonal Number
Michael S. Branicky, Python program for A374144
EXAMPLE
a(3) = 81 = 3 + 78 = 15 + 66 = 36 + 45.
PROG
(Python) # see linked program
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Ilya Gutkovskiy, Jun 28 2024
EXTENSIONS
a(9)-a(16) from Michael S. Branicky, Jun 30 2024
STATUS
approved