66406

Appears in sequences

• G.f.: exp( Sum_{n>=1} A001511(n)*2^A001511(n)*x^n/n ) where A001511(n) equals the 2-adic valuation of 2n.at n=25A183036
• Dispersion of A016861, (5k+1), by antidiagonals.at n=48A191703
• a(n) = (3^(n+1) - 2n^2 + 4n + 5) / 8.at n=11A262592
• Expansion of Product_{k>=1} (1 + x^k)^(k*(k+1)*(2*k-1)/2).at n=9A294845
• Largest number whose digits, in some base, sum to n and include no zeros.at n=9A365452