140419

Properties

Appears in sequences

• a(1) = 1; a(n) = 2*a(n-1) + (number of digits in a(n-1)).at n=16A117079
• The Wiener index of a benzenoid consisting of a linear chain of n hexagons.at n=28A143938
• Primes using all the square digits {0, 1, 4, 9} and no others.at n=35A331346
• First of three consecutive primes p,q,r such that p+q, p+r and q+r are all triprimes.at n=39A362203
• Least of three consecutive primes p, q, r such that p + q, p + r, q + r and p + q + r all have the same number of prime divisors, counted with multiplicity.at n=34A368785
• Prime numbersat n=13045