671088640
domain: N
Appears in sequences
- a(n) = 10*4^n.at n=13A002066
- a(n) = 5 * 2^n.at n=27A020714
- a(n) = (9*2^n + (-2)^n)/4 for n>0.at n=27A056486
- a(n) = floor(log_2(n)*2^n/n).at n=31A065616
- a(n) = round(log_2(n)*2^n/n).at n=31A065617
- a(n) = ceiling(log_2(n)*2^n/n).at n=31A065618
- Fourth column of triangle A067410.at n=10A067412
- Expansion of g.f.: (1+x^2)/(1-2*x).at n=29A084215
- Number of subsets of {1,.., n} containing exactly one square.at n=31A089889
- Number of subsets of {1,.., n} containing exactly two squares.at n=30A089890
- Expansion of (1-4x+24x^2)/((1-4x)(1+4x)).at n=14A091104
- Numbers that set records in A133500.at n=30A133504
- a(n) = (2^prime(n) + 2^prime(n+1)) / 4.at n=9A137781
- Binomial transform of A010685.at n=28A146523
- Coefficients of powers of two Hadamard characteristic polynomials: M(n)=Hadamard[2^n] except for 12.at n=35A158234
- Index of first multiple of n-th prime in A005179.at n=23A161177
- Number of binary strings of length n with equal numbers of 001 and 100 substrings.at n=30A164143
- a(n) = 8*a(n-2) for n > 2; a(1) = 5, a(2) = 12.at n=18A164737
- Inverse binomial transform of A166517.at n=29A166577
- Binomial transform of A215495(n).at n=26A217988