715827882

Appears in sequences

• a(2n) = 2*a(2n-1), a(2n+1) = 2*a(2n)+1 (also a(n) is the n-th number without consecutive equal binary digits).at n=30A000975
• Barlow packings with group R3(bar)m(SO) that repeat after 6n+3 layers.at n=30A011954
• a(n) = a(n-1) + 2*a(n-2) with a(0)=0, a(1)=2.at n=30A014113
• a(n) = (2/3)*(4^n-1).at n=15A020988
• a(n) = C(n,2) + C(n,5) + ... + C(n, 3*floor(n/3)+2).at n=31A024495
• a(n) = a(n-1) + 2*a(n-2) + 2, for n>=3, where a(0)= 1, a(1)= 2, a(2)= 4.at n=29A026644
• Numerator of the expected time to finish a random Tower of Hanoi problem with n disks using optimal moves.at n=30A060590
• Number of 132 and 213-avoiding derangements of {1,2,...,n}.at n=31A061547
• Half totient of 2^n+1.at n=30A063474
• List of codewords in binary lexicode with Hamming distance 15 written as decimal numbers.at n=16A075961
• Basis for code in A075961.at n=4A075962
• Expansion of (1 - x)/((1 + x)*(1 - 2*x)).at n=31A078008
• a(n) = 2^n - A081374(n).at n=29A083322
• Partial sums of a Jacobsthal related sequence.at n=30A084184
• Binomial transform of (-1)^mod(n,3) (A257075).at n=31A086953
• Smallest numbers having in binary representation exactly n maximal groups of consecutive zeros.at n=15A087120
• a(n) is the smallest number such that the exponent of p=2 factor in 6*a(n)+4 equals n.at n=31A087231
• Generalized multiplicative Jacobsthal sequence.at n=31A087464
• Pair reversal of a Jacobsthal sequence.at n=30A094359
• Moebius transform of Jacobsthal numbers.at n=31A104723