OFFSET
1,2
LINKS
Eric Weisstein's World of Mathematics, Tetrahedral Number
EXAMPLE
For n = 3: 305 = 1 + 84 + 220 = 20 + 120 + 165 = 56 + 84 + 165.
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Jan 30 2023
EXTENSIONS
More terms from David A. Corneth, Jan 30 2023
STATUS
approved