351649

Appears in sequences

• a(n) = prime^2 and digits of prime appear in a(n).at n=13A030081
• Numbers n such that sigma(d(n^3))==d(sigma(n^2)), where d(n) is the number of divisors of n.at n=38A063797
• Numbers k such that sigma_4(k)/sigma_2(k) is prime.at n=27A066109
• Squares in which the k-th significant digit either divides k or is a multiple of k.at n=30A069560
• Squares obtained as a concatenation of k and 10's complement of k.at n=4A084004
• Squares for which both the sum of the digits and the product of the digits is a triangular number.at n=32A118490
• Squares k such that, if k has d digits, k has at least one digit in common with every other d-digit square.at n=19A173943
• Square numbers with at least one digit in common with any other positive square number.at n=10A182657
• Composite numbers with both 10 and -10 as primitive root.at n=25A218766
• Number of length n+2 0..4 arrays with some pair in every consecutive three terms totalling exactly 4.at n=8A245865
• a(n) is the smallest k such that A345699(k) = n.at n=12A345763
• Powers p^m, with prime p and m > 1, such that neither p^m-1 nor p^m+1 are squarefree.at n=29A389960