391876

Appears in sequences

• Squares which are palindromes in base 5.at n=9A029989
• Squares whose external digits form a square and whose internal digits form a prime.at n=14A076395
• Main diagonal of A082043: a(n) = n^4 + 2*n^2 + 1.at n=25A082044
• Squares such that square+-3=primes.at n=25A153262
• Maximum number of rational points on a smooth absolutely irreducible projective curve of genus 1 over the field F_5^n.at n=7A169880
• G.f. satisfies: A(x) = x^2/(1-x) + Series_Reversion(x - x*A(x)).at n=8A212922