354292

Appears in sequences

• Largest term in periodic part of continued fraction expansion of square root of -1+3^n.at n=21A077627
• a(n) = 2*(3^n - 1).at n=11A100774
• Number of palindromes (in base 3) below 3^n.at n=22A117862
• Partial sums of A162436.at n=21A164123
• a(n) = 1 + (n-1) + (n-1)*[n/2-1] + (n-1)*[n/2-1]*[n/3-1] + (n-1)*[n/2-1]*[n/3-1]*[n/4-1] +... for n>0 with a(0)=1, where [x] = floor(x).at n=22A207643
• First differences of A302774; Number of terms in A303762 that have prime(n) as their largest prime factor (A006530).at n=22A303749
• Records in the trajectory of all positive integers in the 3x+1 or Collatz problem, including the trajectory [1, 4, 2, 1] of 1.at n=36A347652
• Numbers that are palindromes in both ternary and balanced ternary representations with representations that are different.at n=23A354886