-
pyramidal number is the
number of
points in a
pyramid with a
polygonal base and
triangular sides. The term
often refers to
square pyramidal numbers,...
- mathematics, a
pyramid number, or
square pyramidal number, is a
natural number that
counts the
number of
stacked spheres in a
pyramid with a
square base...
-
pyramid of
numbers representing the
number of
individual organisms at each
trophic level.
Pyramids of
energy are
normally upright, but
other pyramids...
-
Square pyramidal numbers". The On-Line
Encyclopedia of
Integer Sequences. OEIS Foundation.
Retrieved 2016-06-13. "Sloane's A000078 :
Tetranacci numbers". The...
- star
numbers)". The On-Line
Encyclopedia of
Integer Sequences. OEIS Foundation. Sloane, N. J. A. (ed.). "Sequence A000330 (Square
pyramidal numbers)". The...
- non-unitary
convolution of
triangular numbers and
square numbers,
equivalently five-dimensional
pyramidal numbers. Specifically, a
decagon can fill a plane-vertex...
- as a sum of two
abundant numbers 20230 =
pentagonal pyramidal number 20412 =
Leyland number: 93 + 39 20540 =
square pyramidal number 20569 = tetranacci...
- Harshad)
numbers". The On-Line
Encyclopedia of
Integer Sequences. OEIS Foundation.
Retrieved 31 May 2016. "Sloane's A000330 :
Square pyramidal numbers". The...
- one of the
numbers in Aronson's sequence. The 237th
square pyramidal number, 4465475, is also a sum of two
smaller square pyramidal numbers.
There are...
- A
tetrahedral number, or
triangular pyramidal number, is a
figurate number that
represents a
pyramid with a
triangular base and
three sides,
called a tetrahedron...
