73243

Properties

Appears in sequences

• Palindromic primes in base 3.at n=31A029971
• Beginning with 3, least prime such that concatenation of first n terms and its digit reversal both are primes.at n=24A113584
• 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, 1), (-1, 0, 1), (-1, 1, -1), (1, -1, -1), (1, 0, 1)}.at n=11A148545
• a(1) = 4; for n > 1, a(n) = 5*a(n-1) + 5 - n.at n=6A353096
• Array read by ascending antidiagonals: A(1, k) = k; for n > 1, A(n, k) = (k + 1)*A(n-1, k) + k + 1 - n, with k > 0.at n=48A363365
• Prime numbersat n=7236