In the Vinony graph
Vinony's link graph records 236 inbound references to nonagonal number, and connects out to Q43016, prime number and figurate number.
It is catalogued under the topic Figurate numbers.
Vinony links it to 16 Wikipedia language editions.
Connections
Q43016
Entity
prime number
Entity
figurate number
Entity
automorphic number
Entity
number
Entity
International Standard Book Number
Entity
natural number
Entity
digit
Entity
binary numeral system
Entity
exponentiation
Entity
24
Entity
numeral system
Entity
dimension
Entity
46
Entity
75
Entity
three-dimensional space
Entity
parity
Entity
natural language
Entity
perfect number
Entity
divisor
Entity