67161

Appears in sequences

• Numbers k that divide s(k), where s(1)=1, s(j)=13*s(j-1)+j.at n=41A014861
• Numbers k such that k divides s(k), where s(1)=1, s(j) = s(j-1) + j*13^(j-1).at n=19A014953
• Triangular numbers whose sum of aliquot divisors is a prime number.at n=30A083676
• Triangular numbers composed of digits {1,6,7}.at n=9A119140
• a(n) is the n-th J_18-prime (Josephus_18 prime).at n=7A163798