198485
domain: N
Appears in sequences
- Odd tetrahedral numbers: a(n) = (4*n+1)*(4*n+2)*(4*n+3)/6.at n=26A015219
- Integers whose sum of divisors is a 7th power.at n=30A048257
- Squarefree tetrahedral numbers.at n=30A070755
- a(n) = binomial(prime(n+2), 3).at n=26A126995
- The number of inequivalent ways to color the vertices of a regular octahedron using at most n colors.at n=13A198833
- a(n) = binomial(3*n+2,3).at n=34A228888
- a(n) = (5*n + 5)*(5*n + 6)*(5*n + 7)/6.at n=20A300523
- Number of 4-member subsets of [4*n] whose elements sum to a multiple of n.at n=27A318625
- Tetrahedral (or triangular pyramidal) numbers which are products of four distinct primes.at n=12A353027