88209

Appears in sequences

• Squares of partition numbers.at n=17A001255
• Numbers of the form 3^i*11^j.at n=32A003597
• Number of ways to add n ordinals.at n=13A005348
• a(n) = n^2*(5*n-3)/2.at n=33A006597
• a(n) = (9*n)^2.at n=33A017162
• a(n) = (10*n + 7)^2.at n=29A017354
• a(n) = (11*n)^2.at n=27A017390
• a(n) = (12*n + 9)^2.at n=24A017630
• Number of reversible strings with n beads of 3 colors. If more than 1 bead, not palindromic.at n=10A032086
• Squares with initial digit '8'.at n=21A045792
• Odd numbers divisible by exactly 8 primes (counted with multiplicity).at n=31A046321
• a(n) = Sum_{k=1..n, gcd(n,k) = 1} k^3.at n=26A053819
• Numbers n such that the square root of n is an integer and a multiple of the sum of the digits of n.at n=30A067521
• Numbers k such that sigma(k^2 + 1) == 0 (mod k).at n=42A067719
• Numbers m such that m^2 + (reversal of m)^2 is a square. (Leading 0's are ignored.)at n=0A068536
• a(1) = 1, a(n+1) is the smallest square greater than the n-th partial sum.at n=15A076967
• Square numbers which equal a triangular number times an odd number between 1 and 15.at n=12A094973
• Numbers n that can be chopped into two parts, which when added and squared result in n.at n=7A102766
• Numbers which when chopped into one, two or more parts, added and squared result in the same number.at n=12A104113
• "Binary prime squares": squares whose binary expansions, read as decimal expansions, are primes.at n=13A108324