53100

Appears in sequences

• a(n) = (2*n - 1)*n^2.at n=30A015237
• a(n) = sum of numbers without digit 1 and with product of digits = n-th 7-smooth number.at n=41A130975
• Mutually-praising pairs excluding autobiographical numbers A046043. Version 1: both numbers in a pair have at most 10 digits.at n=12A138481
• Mutually-praising pairs excluding autobiographical numbers A138480. Version 2: numbers may have more than 10 digits.at n=14A138482
• Number of ways to place 4 nonattacking amazons (superqueens) on a 4 X n board.at n=21A174642
• Numbers with prime factorization pq^2r^2s^2.at n=29A189344
• Number of (n+1) X 4 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock unequal to the number of counterclockwise edge increases.at n=4A205818
• Number of (n+1) X 6 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock unequal to the number of counterclockwise edge increases.at n=2A205820
• T(n,k) = number of (n+1) X (k+1) 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock unequal to the number of counterclockwise edge increases.at n=23A205823
• T(n,k) = number of (n+1) X (k+1) 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock unequal to the number of counterclockwise edge increases.at n=25A205823
• Position of start of first occurrence of palindromic prime(n) after the decimal point in expansion of Pi.at n=23A309343
• a(n) = ((p-1)^3 - (p-1)^2)/4 where p is the n-th prime.at n=17A331764
• Cubefree exponential abundant numbers: cubefree numbers k for which A051377(k) > 2*k.at n=38A391427