82369

Appears in sequences

• Squares of odd pentagonal numbers.at n=7A014769
• a(n) = (8*n + 7)^2.at n=35A017150
• a(n) = (9*n + 8)^2.at n=31A017258
• a(n) = (10*n + 7)^2.at n=28A017354
• a(n) = (11*n+1)^2.at n=26A017402
• a(n) = (12*n + 11)^2.at n=23A017654
• Denominators of continued fraction convergents to sqrt(818).at n=11A042579
• Squares with initial digit '8'.at n=11A045792
• sigma(n)-n is a perfect square associated with A049226.at n=30A049228
• Denominator of 1/49 - 1/n^2.at n=34A061048
• Squares x such that x + reverse of x is a prime.at n=26A072367
• Numbers k having exactly one divisor d such that in binary representation d and k/d have the same number of 1's as k.at n=14A080026
• Sum of legs of primitive Pythagorean triangles having legs that add up to a square, sorted on hypotenuse.at n=35A089552
• Squares of pentagonal numbers: a(n) = (1/4)*n^2*(3*n-1)^2.at n=14A100255
• Squares of the form semiprime(k) + k-th triangular number.at n=5A114023
• Squares for which the sum of the digits is a triangular number.at n=28A118488
• Triangle, read by rows, where T(n,k) = A049020([n/2],k)*A049020([(n+1)/2],k).at n=61A124526
• A058529(n+1)^2.at n=32A144407
• Numbers with all different digits such that each digit leaves the same nonzero remainder when each is divided into the number.at n=26A152852
• First term of a triple of squares in arithmetic progression, which is not a multiple of another triple in (A198384,A198385,A198386).at n=42A198435