123823

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 55 ones.at n=18A031823
• a(n)=n^2 times nearest cube to n^2.at n=19A077112
• n^3 times nearest integer square to n^3.at n=7A077120
• Numbers that factorize into a prime number of factors all raised to different prime exponents and no number appears both as an exponent and as a prime factor.at n=29A114131
• Powerful numbers (A001694) which can be written as the sum of two relatively prime 3-powerful numbers (A036966) different from 1.at n=12A210470
• Positive integers m that are equal to the determinant of the circulant matrix formed by the decimal digits of m in reverse order.at n=24A219326
• Positive integers k that are equal to the absolute value of the determinant of the circulant matrix formed by the decimal digits of k.at n=26A219327
• Numbers k such that k*sum_of_digits(k) is a perfect cube.at n=21A227227
• Positive integers n such that n^2 divided by the digital sum of n is a cube.at n=18A236749
• a(n) = n^2 - n^3 + n^4.at n=19A309372
• Heinz numbers of integer partitions whose reciprocal sum is 1.at n=20A316855
• Heinz numbers of aperiodic integer partitions whose reciprocal sum is 1.at n=16A316889
• Numbers m > 1 such that every prime divisor p of m satisfies s_p(m) = p.at n=32A324458