42649

Properties

Appears in sequences

• 3n^3 + 2n^2 + n + 1.at n=24A130884
• Numbers k such that sum of digits of k = sum of digits of anti-divisors of k.at n=20A213239
• Primes p such that p^4-p^3+1 and p^4-p^3-1 are also primes.at n=17A238136
• Primes p such that the decimal expansion of its base 7 expansion converted to decimal is a square.at n=17A241246
• Fundamental discriminants d uniquely characterizing all complex biquadratic fields Q(sqrt(-3),sqrt(d)) which have 3-class group of type (3,3) and second 3-class group isomorphic to SmallGroup(729,37).at n=28A250240
• Prime numbers such that, in base 10, all their proper prefixes and suffixes represent composites.at n=34A254754
• Main diagonal of A332357.at n=22A332358
• Primes having only {2, 4, 6, 9} as digits.at n=42A386156
• Prime numbersat n=4458