358801
domain: N
Appears in sequences
- Composite numbers whose prime factors contain no digits other than 5 and 9.at n=21A036321
- a(n) = n*(n+1)*(n+2)*(n+3)+1 = (n^2 + 3*n + 1)^2.at n=23A062938
- Numbers n such that sigma(d(n^3))==d(sigma(n^2)), where d(n) is the number of divisors of n.at n=39A063797
- Numbers k such that sigma_4(k)/sigma_2(k) is prime.at n=28A066109
- Prime powers of prime numbers such that the sum of its digits is also prime power of prime number.at n=23A076705
- Squares of A006450: a(n) = prime(prime(n))^2.at n=28A092769
- Expansion of g.f. (3x+1)/((1-3*x)*(1+5*x+9*x^2)).at n=12A103644
- "Binary prime squares": squares whose binary expansions, read as decimal expansions, are primes.at n=21A108324
- Squares of lesser of twin primes.at n=26A108570
- Squares whose digit reversal is a brilliant number (A078972).at n=25A115667
- Squares in A111153.at n=32A175255
- Perfect powers m^k such that m, k and m+k are primes.at n=30A258400
- Numbers k such that sigma(k^3) is prime.at n=22A279096
- a(n) = A379119(A379121(n)), where A379121 gives those odd squares k for which A379113(k) > 1 and A379119(n) = n/A379113(n).at n=36A379124