93553

Properties

Appears in sequences

• Beginning with 3, least prime such that concatenation of first n terms and its digit reversal both are primes.at n=32A113584
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (0, 0, -1), (1, -1, 0), (1, 0, 1)}.at n=11A148598
• Number of '1' digits in the set of all numbers from 0 to A014824(n) = Sum_{i=1..n} i*10^(n-i) = (0, 1, 12, 123, 1234, 12345, ...).at n=6A277831
• Primes that yield a prime when any single digit is replaced by its 10's complement.at n=46A345529
• Prime numbersat n=9034