2211840

Appears in sequences

• Theta series of 16-dimensional Barnes-Wall lattice.at n=5A008409
• Theta series of (probably nonexistent) exceptionally good 16-dimensional sphere packing.at n=10A008774
• Denominators of coefficients of expansion of Bessel function J_3(x).at n=3A014401
• Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*12^j.at n=24A038242
• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*8^j.at n=24A038262
• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*8^j.at n=25A038262
• Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*6^j.at n=23A038284
• Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*6^j.at n=24A038284
• Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*4^j.at n=24A038330
• E.g.f. (1-x)/(1-4x).at n=6A052592
• Products of exactly 18 primes (generalization of semiprimes).at n=16A069279
• Sorted number of edges of distinct solutions in the mix of 2 or 3 regular convex 4-polytopes.at n=20A199808
• a(n) = phi(lcm(1,2,3,...,n)), where phi is Euler's totient function.at n=16A217863
• a(n) = phi(lcm(1,2,3,...,n)), where phi is Euler's totient function.at n=17A217863
• Theta series of 16-dimensional lattice OBW16, an overlattice of the Barnes-Wall lattice BW16.at n=10A239917
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 30", based on the 5-celled von Neumann neighborhood.at n=23A285539
• Heinz numbers of integer partitions whose product of parts is one greater than their sum.at n=34A325041
• Number of compositions of partitions of 2n with exactly n compositions.at n=14A327550
• Column 1 in the matrix of A279212 (whose indexing starts at 0).at n=17A335903
• a(n) = A000010(A001045(n)).at n=23A366773