332929

Appears in sequences

• Duplicate of A024537.at n=14A018905
• a(n) = floor( a(n-1)/(sqrt(2) - 1) ), with a(0) = 1.at n=15A024537
• Squares k such that digits of sqrt(k) are not present in k or k^(3/2).at n=15A029791
• a(n) = prime^2 and digits of prime do not appear in a(n).at n=23A030088
• Numerators of continued fraction convergents to sqrt(985).at n=9A042906
• Squares whose digits occur with an equal minimal frequency of 2.at n=2A052050
• Squares composed of digits {2,3,9}.at n=2A053921
• a(n) and floor(a(n)/2) are both squares; i.e., squares which remain squares when written in base 2 and last digit is removed.at n=5A055792
• a(n) and floor(a(n)/8) are both squares; i.e., squares that remain squares when written in base 8 and last digit is removed.at n=9A055872
• Numbers k such that k*(k - 1)/2 is a square.at n=8A055997
• Numbers n such that sigma(d(n^3))==d(sigma(n^2)), where d(n) is the number of divisors of n.at n=36A063797
• Smallest composite k such that phi(k) > k*(1-1/n^2).at n=23A069639
• Safe perfect powers: perfect powers n such that (n-1)/2 is also a perfect power.at n=4A075127
• Numbers n such that n-1 and n are a pair of consecutive powerful numbers.at n=6A078326
• Main diagonal of A082043: a(n) = n^4 + 2*n^2 + 1.at n=24A082044
• a(1) = 4, a(n) = smallest number of the form k*a(n-1) +1 with the same prime signature p^2, where p is a prime.at n=3A085065
• Repeatedly multiply (1,0,0) by ([1,2,2],[2,1,2],[2,2,3]); sequence gives leading entry.at n=8A090390
• Expansion of g.f. (1-x-x^2)/(1-x-3*x^2-x^3).at n=16A097075
• Squares of the form 5p - 6, where p is prime.at n=27A110481
• a(n) = 2*a(n-1) + 2*a(n-3) + a(n-4), a(0) = 1, a(1) = 4, a(2) = 9, a(3) = 20.at n=14A111587