80896

Appears in sequences

• Exponential-convolution of natural numbers with themselves.at n=11A007466
• Expansion of e.g.f.: exp(tanh(x)+tan(x))=1+2*x+4/2!*x^2+8/3!*x^3+16/4!*x^4+64/5!*x^5...at n=9A013133
• sin(tanh(x)+tan(x))=2*x-8/3!*x^3+64/5!*x^5-2816/7!*x^7+80896/9!*x^9...at n=4A013134
• Smallest multiple of prime(n) with n divisors, or 0 if no such number exists.at n=21A076962
• Record values in A003415 (arithmetic derivative).at n=37A131116
• Numbers with 22 divisors.at n=20A137485
• a(n) = 4^(floor(n/2))+4^(floor(n/2)-1)-4^(floor((n-1)/3)).at n=14A170833
• a(n) = 4^(floor(n/2))+4^(floor(n/2)-1)-4^(floor((n-1)/3)).at n=15A170833
• (n-1)-st elementary symmetric function of the first n terms of the periodic sequence (1,1,1,2,1,1,1,2,...).at n=44A203234
• a(n) = ((1 + sqrt(15))^n - (1 - sqrt(15))^n)/sqrt(15).at n=8A277091
• Expansion of g.f. A(x) satisfying A(x) = A(x^3 + x^4) / A(x^2).at n=44A372529