122323

Properties

Appears in sequences

• Sorted list of strings that can be obtained by starting with 123 and repeatedly doubling any substring in place.at n=26A135475
• a(n) is the smallest number whose name in US English contains n consonants.at n=31A157899
• a(n) is the smallest number whose name in UK English contains n consonants.at n=35A157900
• a(n) is the smallest number greater than a(n-1) whose name in UK English contains n consonants.at n=35A157902
• Primes p such that p^2 - 8, p^2 - 6 and p^2 - 2 are prime.at n=30A176960
• Numerator of Sum_{k=1..n} 1/lambda(k), where lambda(k) is the Carmichael's lambda function.at n=37A211306
• Record high values in A358497.at n=30A358615
• Prime numbersat n=11507