:Template:Classes of natural numbers/sandbox

{{Navbox

| name = Classes of natural numbers

| title = Classes of natural numbers

| listclass = hlist

| state = {{{state|collapsed}}}

|group1 = Powers and
related numbers

|list1 =

|group2 = Of the form
a × 2b ± 1

|list2 =

|group3 = other polynomial
numbers

|list3 =

|group4 = Recursively defined
numbers

|list4 =

|group5 = Possessing a
specific set
of other numbers

|list5 =

|group6 = Expressible via
specific sums

|list6 =

|group7 = Generated
via a sieve

|list7 =

|group8 = Code related

|list8 =

|group9 =

|list9 =

|group10 = Pseudoprimes

|list10 =

|group11 = Combinatorial
numbers

|list11 =

|group12 = Arithmetic functions

|list12 = {{Navbox|subgroup

|group1 = By properties of σ(n)

|list1 =

|group2 = By properties of Ω(n)

|list2 =

|group3 = By properties of φ(n)

|list3 =

|group4 = By properties of s(n)

|list4 =

}}

|group13 = Dividing a quotient

|list13 =

|group14 = Other prime factor
or divisor related
numbers

|list14 =

|group15 = Base-dependent
numbers

|list15 =

|group16 = Recreational
mathematics

|list16 =

|group17 =

|list17 = {{Figurate numbers|border=subgroup}}

}}

{{collapsible option}}