74498

Appears in sequences

• Numbers m such that sigma(m+1)+sigma(m-1) = 5*phi(m).at n=26A067242
• Numbers k that divide 3^(k^3) + 1.at n=7A092408
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (-1, 0, 1), (1, -1, 1), (1, 0, 1), (1, 1, -1)}.at n=9A149410
• Composite numbers k such that Sum_{i=1..t-1} d(i+1)/d(i) is prime, where d(1), ..., d(t) are the divisors of k in ascending order.at n=39A255585
• Numbers k such that A206369(k) is prime.at n=34A383649