20277

Appears in sequences

• Numbers k such that k! - (k-1)! - 1 is prime.at n=25A049433
• Numerators of coefficients in series expansion of -512*(1+x)^3/(x-8)^3.at n=31A066414
• Number of partitions of n such that the least part occurs exactly three times.at n=48A097091
• Number of permutations of length n which avoid the patterns 1234, 3142, 3421.at n=12A116767
• Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1000-1100-0111 pattern in any orientation.at n=9A146396
• Expansion of s(q)^6 where s() is cubic AGM theta functions.at n=8A320677
• Numbers k such that A307437(k) is divisible by 3.at n=36A342037
• G.f.: Sum_{k>=0} x^(k*(k+1)/2) * Product_{j=1..k} 1/(1 - x^j)^3.at n=21A376707
• G.f. A(x) satisfies A(x) = 1/( 1 - x*A(x)^(4/3)/(1 - x*A(x)^(4/3)) )^3.at n=5A378669