982081
domain: N
Appears in sequences
- a(n) = prime^2 and digits of prime appear in a(n).at n=21A030081
- a(n) = n*(n+1)*(n+2)*(n+3)+1 = (n^2 + 3*n + 1)^2.at n=30A062938
- Numbers which when chopped into one, two or more parts, added and squared result in the same number.at n=27A104113
- Least square beginning with the digit reversal of n^2.at n=16A111443
- Numbers n such that (sigma(n)-n)/(tau(n)-1) is a perfect number.at n=4A219223
- a(0) = 16, after which, if (2*a(n-1)) - 1 = product_{k >= 1} (p_k)^(c_k) then a(n) = product_{k >= 1} (p_{k-1})^(c_k), where p_k indicates the k-th prime, A000040(k).at n=38A246345
- Square numbers in A070552.at n=31A263951
- Squares that remain squares if you decrease them by 7 times a repunit with the same number of digits.at n=6A273233