824633720832
domain: N
Appears in sequences
- a(n) = 3*4^(n-1), n>0; a(0)=1.at n=20A002001
- Denominator of Bernoulli(2n,1/2).at n=19A033469
- a(n) = n*8^n.at n=12A036294
- Denominators of coefficients of 1/2^(2n+1) in Newton's series for Pi.at n=22A054388
- Composites of form prime+1 containing a record number of prime factors.at n=25A066617
- Largest n-digit number of the form p^a*q^b... with the maximum value of a+b+.... where p, q etc. are primes.at n=11A074114
- Expansion of (1 - 4*x + 4*x^2 - 4*x^3)/(1 - 4*x).at n=21A092898
- Denominator of (3*2^(n-1) - 1)*integral_{x=0 to 1/(4^n)}1-sqrt x dx.at n=12A094085
- a(1) = 4, a(2) = 12, for n>1: a(n) = 3*4^(n-1).at n=19A110594
- a(n) = 3 * 4^n.at n=19A164346
- a(n) = 8*a(n-2) for n > 2; a(1) = 1, a(2) = 12.at n=25A164675
- a(n) = 8*a(n-2) for n > 2; a(1) = 5, a(2) = 12.at n=25A164737
- Consider the list s(1), s(2), ... of numbers that are products of exactly n primes; a(n) is the smallest s(j) whose decimal expansion ends in j.at n=39A186000
- Number of (n+1)X2 0..2 arrays with every 2X2 subblock having unequal diagonal elements or unequal antidiagonal elements, and new values 0..2 introduced in row major order.at n=12A204623
- Sum of binary palindromes in the half-open interval [2^(n-1), 2^n).at n=27A206917
- Decimal representation of the n-th iteration of the "Rule 115" elementary cellular automaton starting with a single ON (black) cell.at n=26A267271
- Expansion of g.f. (1+4*x)/(1-8*x).at n=13A270568
- a(n) is the smallest number which can be written in n different ways as an ordered product of prime factors.at n=38A304938