30140

Appears in sequences

• Theta series of A_10 lattice.at n=4A008450
• Theta series of A*_10 lattice.at n=44A023922
• Number of 10's in all partitions of n.at n=47A024794
• G.f. A(x) satisfies A(x/A(x)^2) = 1/(1-x)^2.at n=5A145163
• a(n) = number of 9-digit primes with digit sum n, where n runs through the non-multiples of 3 in the range [2..80].at n=43A178884
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 185", based on the 5-celled von Neumann neighborhood.at n=33A270636
• a(n) = a(n-2) + a(n-3) for n >= 3, with a(0) = a(1) = 2, a(2) = 1.at n=36A276477
• a(1) = 1; a(n+1) = Sum_{d|n} sigma(n/d)*a(d), where sigma = sum of divisors (A000203).at n=39A307817
• a(n) = A120963(n)/2.at n=21A341710
• a(n) = A120963(2*n)/2.at n=10A341712