47573

Appears in sequences

• Brilliant numbers such that when they are concatenated with their 10's complement, which also must be brilliant, the result is a prime.at n=4A084629
• Expansion of g.f. x*(-20-37*x+3*x^2)/(-1+x+19*x^2+10*x^3+x^4).at n=6A104100
• a(n) = Sum_{k=0..3} f(n+k)^2 where f=A130519.at n=29A238604