23533

Appears in sequences

• Numbers having four 5's in base 8.at n=30A043444
• Sum of a(n) terms of 1/k^(4/5) first exceeds n.at n=33A056180
• Smallest composite number in base n which contains its largest proper factor as a substring.at n=10A063248
• Numbers n such that sigma_3(n) is divisible by square of cototient of n, while n is not a prime number.at n=14A091286
• Least positive multiple of 2n-1 which is palindromic in base 2.at n=50A141708
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 0), (0, 0, 1), (1, -1, 1), (1, 1, 0)}.at n=8A150232
• a(n) = prime(n) * prime(2*n-1).at n=25A219603
• Number of n X 3 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 3 and every value within 3 of its king move distance from the upper left and every value increasing by 0 or 1 with every step right, diagonally se or down.at n=11A252999
• Palindromic numbers in bases 2 and 8 written in base 10.at n=52A259380
• MM-numbers of crossing set partitions.at n=28A324324