19592

Appears in sequences

• Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite BRE = Brewsterite (Sr,Ba)2[Al4Si12O32].10H2O starting with a T2 atom.at n=13A019086
• Multiplicity of highest weight (or singular) vectors associated with character chi_12 of Monster module.at n=43A034400
• a(0) = 1; a(1) = 1; a(2) = 1; a(n) = (n-1)*a(n-1) + (n-2)*a(n-2) + (n-3)*a(n-3) for n >= 3.at n=8A122752
• Number of binary strings of length n with no substrings equal to 0000 0001 or 0010.at n=13A164407
• Binomial variation of the Catalan numbers: a(n) = sum( binomial(n-i, i)*a(i)*a(n-1-i), i=0..(n-1) ) with a(0)=1.at n=9A188479
• Number of 4-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero and avoiding the patterns z z+1 z+2 and z z-1 z-2.at n=23A209116
• Molien series for invariants of finite Coxeter group A_11.at n=54A266780
• E.g.f. A(x,k) satisfies: sn(A(x,k), k) = k * sn(x,k), where sn(,) and cn(,) are Jacobi Elliptic functions.at n=21A291527
• Numbers k such that (32*10^k + 319)/9 is prime.at n=17A293856
• Number of blunt polypons with n cells.at n=19A355562
• Row sums of A364891.at n=43A364892