OFFSET
3,1
LINKS
Martin Ehrenstein, Table of n, a(n) for n = 3..52
Eric Weisstein's World of Mathematics, Pyramidal Number
EXAMPLE
For n = 3: 305 = 1 + 84 + 220 = 20 + 120 + 165 = 56 + 84 + 165.
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Dec 29 2021
EXTENSIONS
a(10)-a(22) from Michael S. Branicky, Dec 29 2021
a(23)-a(36) from Martin Ehrenstein, Jan 14 2022
STATUS
approved