776161

Appears in sequences

• Composite numbers whose prime factors contain no digits other than 1 and 8.at n=25A036308
• Indices of pentagonal numbers (A000326) that are also squares (A000290).at n=3A046172
• Squares whose digits occur with an equal minimal frequency of 2.at n=7A052050
• Squares composed of digits {1,6,7}.at n=5A053907
• Squares that are the sum of 3 consecutive primes.at n=26A080665
• Smallest square which is one more than the product of n distinct numbers > 1.at n=7A081948
• Unsigned member r=-8 of the family of Chebyshev sequences S_r(n) defined in A092184.at n=7A098308
• Squares of lesser of twin primes.at n=34A108570
• Sieve performed by successive iterations of steps where step m is: keep m terms, remove the next 5 and repeat; as m = 1,2,3,.. the remaining terms form this sequence.at n=20A112563
• Perfect powers equal to the sum of 6 factorial numbers.at n=42A227647
• a(n) = (1-2*n^2)^2.at n=21A239607
• Square numbers in A070552.at n=29A263951
• Prime powers p^k such that p^k = x^3 + y^3 + z^3 where x, y, z are positive integers and k > 1, is soluble.at n=32A271829
• Numbers k such that concat(k, d(k)) and concat(d(k), k) are both prime, where d(k) is the number of divisors of k.at n=18A284643