28991029248
domain: N
Appears in sequences
- a(n) = (3^3)*4^(n-3) with a(0)=1, a(1)=1 and a(2)=7.at n=18A056120
- a(n) = n^3*4^n.at n=12A128790
- a(n) = 27*2^n.at n=30A175806
- a(n) = 27*8^n.at n=10A272342
- Denominators of coefficients in the asymptotic expansion of the logarithm of the central binomial coefficient.at n=13A275995
- a(n) = smallest number whose arithmetic derivative has exactly n prime factors.at n=36A284149
- a(n) is the least number of the form p^2 + q^2 - 2 for primes p and q that is an odd multiple of 2^n, or -1 if there is no such number.at n=30A359439