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PROG
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(PARI) a(n)=n*2^n*(2^n+1)^(n-1)
for(n=0, 20, print1(a(n), ", "))
(PARI) {a(n)=polcoeff(sum(m=1, n, m*2^(m^2)*x^m/(1-2^m*x+x*O(x^(n-m)))^(m+1)), n)}
for(n=0, 20, print1(a(n), ", "))
(PARI) {a(n)=n!*polcoeff(sum(m=1, n, m*2^(m^2)*exp(2^m*x+x*O(x^(n-m)))*x^m/m!), n)}
for(n=0, 20, print1(a(n), ", "))
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