49255

Appears in sequences

• The (4,1)-entry in the 4 X 4 matrix M^n, where M = [1,0,0,0 / 3,3,0,0 / 3,6,3,0 / 1,3,3,1].at n=6A100190
• Rightmost diagonal of triangle A115323.at n=12A115325
• a(n) is the smallest number k such that k^n has the same digits as some other n-th power without leading zeros.at n=18A133208
• Numbers k such that 369*2^k+1 is prime.at n=18A323009
• Recurrence a(1) = 1, a(2) = 5; a(n) = (a(n-1) + a(n-2))/GCD(a(n-1),a(n-2)) + 1.at n=35A349576
• a(n+1) = 2*a(n) + A298338(n-1), with a(1) = 1.at n=14A363503