20205025
domain: N
Appears in sequences
- Squares of tetrahedral numbers: a(n) = binomial(n+3,n)^2.at n=28A001249
- Squares of odd tetrahedral numbers.at n=7A014795
- Squares composed of digits {0,2,5}, not ending with zero.at n=8A058426
- Squares whose arithmetic mean of digits is 2 (i.e., the sum of digits is twice the number of digits).at n=24A316482