62680

Appears in sequences

• a(n) is the number of integers m which take n steps to reach 1 in '3x+1' problem.at n=49A005186
• Expansion of x^4*(2+x)/((1+x)*(1-x)^5).at n=29A082289
• a(n) = (1/24)*(n+1)*(n+3)*(n^2+22*n+88).at n=30A090950
• Numbers k such that prime(k), prime(k+1), prime(k+2), prime(k+3) and prime(k+4) all have the same last digit.at n=12A371390