56107

Appears in sequences

• Interprimes which are of the form s*prime, s=19.at n=16A075294
• Consider a decimal number of k>=2 digits z = d_(k)*10^(k-1) + d_(k-1)*10^(k-2) + ... + d_(2)*10 + d_(1) and the sum y = Sum_{x=2..k} {Sum_{j=1..k-x}{d_(j+x-1)*10^(j-1)} - Sum_{j=1..x-1}{d_(j)*10^(j-1)}}. Sequence lists the numbers for which y = tau(z), where tau(z) is the number of divisors of z.at n=24A248904
• Total number of vertices formed by intersections among sides and straight "chords" in a right triangle when each side is divided by vertices into n equal segments.at n=14A274585
• Positions of pandigital 10-digit numbers after the decimal point in the decimal expansion of Pi.at n=23A280183