61282

Appears in sequences

• Start with a single triangle; at n-th generation add a triangle at each vertex, allowing triangles to overlap; sequence gives total population of triangles at n-th generation.at n=23A061777
• Number of distinct solutions of Sum_{i=1..3}(x(2i-1)*x(2i)) = 0 (mod n), with x() in 0..n-1.at n=18A180795
• a(n) is the smallest m for which 7^m contains n consecutive identical digits.at n=9A215730
• a(n) is the least positive exponent k such that the decimal expansion of 7^k contains n consecutive zeros.at n=10A329174
• Number of integer partitions of n that are empty, or have smallest part dividing all the others, but do not have greatest part divisible by all the others.at n=44A343345