46874

Appears in sequences

• a(n) = a(1) + a(2) + ... + a(n-1) - a(m) for n >= 4, where m = 2*n - 2 - 2^(p+1) and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 2 and a(3) = 3.at n=18A049911
• Numbers of the form i*5^j-1 (i=1..4, j >= 0).at n=26A181287
• Numbers which contain only the digit 4 in their base-5 representation, with at most one exception. If the exception is the most-significant digit, it must be the digit 1, 2, or 3, otherwise the exception must be the digit 3.at n=40A188531
• a(n) = 3*5^n - 1 = 2*A057651(n).at n=6A198762
• a(n) = 3*n^3 - 1.at n=25A345701