137438953470
domain: N
Appears in sequences
- a(n) = 2^n - 2.at n=37A000918
- a(n) = 2^(2*n+1) - 2.at n=18A002446
- Number of palindromes (in base 8) below 8^n.at n=23A117867
- 2^k-2^j, where (2^k,2^j) is the least pair of distinct positive powers of 2 for which n divides 2^k-2^j.at n=36A204991
- Decimal representation of the n-th iteration of the "Rule 229" elementary cellular automaton starting with a single ON (black) cell.at n=18A267851