516961
domain: N
Appears in sequences
- Squares of numbers of rooted trees.at n=9A001257
- Squares k^2 such that A068864(k) = k^2.at n=32A068867
- Perfect squares which can be written neither as a^2+b^2, nor as a^2+2*b^2, nor as a^2+3*b^2, nor as a^2+7*b^2, with a > 0 and b > 0.at n=8A216408
- Totient highly abundant numbers that are composite.at n=19A286322
- Matula-Goebel numbers of orderless same-trees with all leaves equal to 1.at n=32A291441
- Matula-Goebel numbers of lone-child-avoiding achiral rooted trees.at n=31A331967
- Composite terms of A181659, where the sum of the iterated totient function attains a record.at n=12A332737