Similar to 立方数

Centered nonagonal number

Centered pentagonal number

Centered triangular number

Centered square number

Centered polygonal number

Centered heptagonal number

Centered octagonal number

Centered hexagonal number

Central binomial coefficient

Superabundant number

Superperfect number

Harmonic divisor number

Dedekind number

Heptagonal number

Lazy caterer's sequence

Narcissistic number

Binomial coefficient

Double factorial

Double Mersenne number

Nontotient

Harshad number

Multiply perfect number

Hyperperfect number

Octagonal number

Eighth power

Happy number