166635
domain: N
Appears in sequences
- 4-dimensional analog of centered polygonal numbers.at n=26A006323
- Odd pentagonal pyramidal numbers.at n=17A015223
- a(n) = (n+1)*(2n+1)^2.at n=34A139757
- Pentagonal pyramidal numbers divisible by 3.at n=46A299412
- Numbers that have exactly 7 representations as a k-gonal number, P(n,k) = n*((k-2)*n - (k-4))/2, k and n >= 3.at n=35A321157