822083584

Appears in sequences

• Expansion of g.f. (1+2*x)/(1-2*x)^2.at n=24A014480
• a(0)=1, a(1)=6, a(n)=49*8^(n-2) if n>=2.at n=10A055847
• a(n) = n-th n-almost prime.at n=25A101695
• Smallest number beginning with 8 and having exactly n prime divisors counted with multiplicity.at n=25A106428
• a(n) = 2^(n-1)*A047240(n).at n=25A128205
• a(n) = (n^3 + n^2)*8^n.at n=6A129008
• Expansion of (1-8x-8x^3)/(1-2x+4x^2)^2.at n=24A151912
• Denominators of a BBP series for Pi/4.at n=24A164916
• Square array read by antidiagonals upwards: the n-th row o.g.f. is exp( Sum_{i >= 1} d(n,i+1)*x^i/i ) for n >= 1, where d(n,k) is Shanks's array of generalized Euler and class numbers.at n=32A262144