60409

Appears in sequences

• Strong pseudoprimes to base 43.at n=24A020269
• Where records occur in A092419.at n=10A070040
• Semiperimeter of primitive Pythagorean triangles having legs that add up to a square, sorted on hypotenuse.at n=30A089549
• Golden semiprimes: a(n)=p*q and abs(p*phi-q)<1, where phi = golden ratio = (1+sqrt(5))/2.at n=20A108540
• Carryless squares of carryless primes (cf. A169887).at n=26A169904
• Numbers that when expressed in decimal are equal to the sum of the digits sorted into nondecreasing order and raised to the powers 1, 2, 3, ...at n=12A208130
• Integer areas of the first Neuberg triangles of integer-sided triangles.at n=11A230758
• Main diagonal of array A255551.at n=40A255550