3041577

Appears in sequences

• Numbers k such that core(k+1) = core(k)+1 and k is not squarefree, where core(k) = A007913(k).at n=25A260198
• a(n) is the least number with n factorizations into S-primes (numbers 4k+1 with no proper divisors > 1 of form 4m+1).at n=10A321337
• Number of integer compositions of n with all prime run-lengths.at n=43A353401