165649

Appears in sequences

• a(n) = (11*n)^2.at n=37A017390
• a(n) = (12*n + 11)^2.at n=33A017654
• Final terms of rows of A077346.at n=15A077347
• Squares that are the sum of 3 consecutive primes.at n=15A080665
• Triangular numbers + 1 squared.at n=28A086601
• Squares sandwiched between two numbers divisible by squares.at n=27A088068
• A104315(n)^2.at n=16A104316
• Expansion of (1 +34*x +121*x^2)/((1-x)*(x^2 -14*x +1)).at n=4A110906
• Squares of the form 4*A014574(n-1) + 1.at n=25A131706
• a(n) = (14*n+1)^2.at n=29A134934
• Squares that becomes primes when prefixed with a 3.at n=32A167718
• Squares k such that, if k has d digits, k has at least one digit in common with every other d-digit square.at n=7A173943
• Numbers n such that the sum_i (d_i^i) of the i-th powers of their sorted divisors d_1< d_2<...< n is prime.at n=11A180852
• Square numbers with at least one digit in common with any other positive square number.at n=4A182657
• Perfect squares which can be written in all the four forms a^2+b^2, a^2+2*b^2, a^2+3*b^2 and a^2+7*b^2, with a > 0 and b > 0.at n=40A216682
• Numbers k such that tau(k+1) - tau(k) = 3, where tau(k) = the number of divisors of k (A000005).at n=25A230653
• 4*(n + 7)^3 - 27*(n + 7)^2 = (4*n +1)*(n+7)^2.at n=30A245033
• a(n) = 4*prime(n)^3 - 27*prime(n)^2 = (prime(n)^2)*[4*prime(n) - 27], n >= 4.at n=8A245036
• Squares of composite numbers k that are abelian orders.at n=30A350345