42487

Properties

Appears in sequences

• Number of positive integers <= 10^n that are divisible by no prime exceeding 7.at n=16A106600
• Pyramid game person numbers that have integer solutions.at n=36A135051
• Prime numbers p for which the quintic polynomial x^5 - x - 1 modulo p completely factors into linear polynomials.at n=36A135844
• Prime numbers p not of the form 10*k+1 for which the quintic polynomial x^5-x-1 modulus p is factorizable into five binomials.at n=26A135845
• Primes of the form x^2 + 7*y^2, where x and y=x+1 are consecutive natural numbers.at n=33A176616
• Primes of the form 3n^2 + 4.at n=24A201477
• Primes 8k + 7 preceding the maximal gaps in A269519.at n=7A269520
• Primes equal to a hexagonal number plus 1.at n=34A285790
• Prime numbersat n=4445