32780

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 18.at n=20A031696
• Numbers k such that k^2 + k - 1 and k^2 + k + 1 are twin primes and (k + 1)*(k + 1) + k + 1 - 1 and (k + 1)*(k + 1) + k + 1 + 1 are also twin primes.at n=12A088498
• Partial sums of A000051, starting at n=1.at n=13A145071
• Number of compositions of n where the difference between largest and smallest parts equals 2 and adjacent parts are unequal.at n=27A214271
• Numbers n such that a digit of n to the power k plus the sum of the other digits of n equals n, where k is a positive integer.at n=18A257860
• Number of n X 5 0..1 arrays with every element equal to 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero.at n=8A298060
• Number of partitions of integer partitions of n where all parts have the same length.at n=26A319066
• BII-numbers of set partitions with at least two blocks.at n=44A330296