71952

Appears in sequences

• a(0) = 1; for n>0, a(n) = (n+3)*2^(n-2)-n*binomial(n-1, floor( (n-1)/2 ))-(n-1)*binomial(n-2,floor((n-2)/2)).at n=15A121285
• a(n) = 2*(n-1)*( a(n-1)+a(n-2) ) starting a(1)=a(2)=1.at n=6A142703
• a(n) = 2*binomial(n+4, 4) + n + 4.at n=28A177206
• Expansion of e.g.f. (1 + x)/(1 - log(1 + x)).at n=10A306038
• The five digits of a(n) and their four successive absolute first differences are all distinct.at n=47A365257