443520

Appears in sequences

• Orders of sporadic simple groups.at n=3A001228
• Order of largest (finite) group with n conjugacy classes.at n=11A002319
• a(0) = 1, a(1) = 2, for n > 1, a(n) = 4*a(n-1) - 2*a(n-2).at n=11A003480
• Expansion of e.g.f.: arctan(log(x+1)-tanh(x)).at n=8A013285
• Pisot sequence P(2,7): a(0)=2, a(1)=7, thereafter a(n+1) is the nearest integer to a(n)^2/a(n-1).at n=10A020727
• Duplicate of A020727.at n=10A021000
• Expansion of ( Sum_{k>=0} k*q^(k^2) )^8.at n=49A037217
• Expansion of e.g.f.: (1+2*x-2*x^2)/(1-x)^2.at n=8A052572
• E.g.f. (1+x-x^2)^2/(1-x)^2.at n=8A052643
• Triangular array for David G. Cantor's sigma function.at n=41A055068
• a(0)=1; a(1)=2; a(n) = a(n-1) + a(n-2)*(3 - (-1)^n)/2.at n=21A062113
• a(n) = A081456(n)^(1/2).at n=13A081457
• Triangle whose n-th row contains the n smallest numbers that are products of n distinct integers > 1, read by rows.at n=30A081957
• Binomial transform of (Pell(-n)+Pell(n))/2.at n=12A094038
• Magic products of 5 X 5 multiplicative magic squares.at n=7A111031
• Orders of non-Abelian simple groups of rank at least two.at n=17A119630
• Orders of non-Abelian simple groups of rank at least four.at n=8A119631
• A partition product of Stirling_1 type [parameter k = -3] with biggest-part statistic (triangle read by rows).at n=32A157383
• Numbers that set a record for number of even divisors: a(n) = 2*A002182(n).at n=31A181808
• Number of (n+2) X (n+2) symmetric binary matrices without the pattern 0 1 1 diagonally.at n=3A190535