1281247

Appears in sequences

• a(n) is the positive integer with signature s that is the most frequent prime signature up to a(n)-1 such that there is a tie with a different signature. a(1) = 1.at n=19A335293
• Consider the race between primes, squarefree semiprimes, ..., products of k distinct primes; sequence indicates when one overtakes another to give a new race leader.at n=18A359242