299209
domain: N
Appears in sequences
- a(n) = prime^2 and digits of prime do not appear in a(n).at n=21A030088
- Squares composed of digits {0,2,9}, not ending with zero.at n=3A058428
- Smaller of 2 squares whose corresponding digits add to give 0 or 10 and neither square ends in 0's. (The smaller of two 10-complementary squares.)at n=3A074812
- Squares of A006450: a(n) = prime(prime(n))^2.at n=25A092769
- Odd squares not in A113659.at n=21A103962
- Number of (w,x,y,z) with all terms in {1,...,n} and w<2x and y<2z.at n=27A212503
- Number of nX2 0..1 arrays with all rows and columns having a nonnegative second derivative in a quadratic least squares fit, with one and two element arrays taken as having a zero second derivative.at n=9A223221
- Perfect squares k such that each decimal digit of k is equal to the difference of at least two other digits of k.at n=8A255893
- Discriminants of totally real cubic fields with noncyclic class group.at n=12A329785
- Numbers of the form prime(p)^q where p and q are primes. Prime powers whose prime index and exponent are both prime.at n=38A352519
- Squares where larger digits have larger multiplicity.at n=11A378492