92479

Properties

Appears in sequences

• Primes which are a concatenation of n and prime(n).at n=24A084667
• Numerators of sequence defined by f(0)=1, f(1)=5/4; f(n) = ( (6*n-1)*f(n-1) - (2*n-1)*f(n-2) )/(4n).at n=6A126963
• Emirps starting and ending with composite digit 9.at n=28A128374
• a(n) = 80*n^2 - 1.at n=33A158774
• Number of ways that a 1 X n rectangular tile T, marked into n unit squares, can be surrounded by one layer of copies of itself laid in the plane grid generated by the units of T. Ways that differ by rotation or reflection are not counted as different. The surrounded tile is the exact surrounded region.at n=27A159294
• Primes that are the first in a run of exactly 4 emirps.at n=31A346024
• a(n) is the number of multisets of n decimal digits where the sum of the digits equals the product of the prime digits.at n=36A384445
• Prime numbersat n=8934