19588

Appears in sequences

• a(n) = Sum{a(k): k=0,1,2,...,n-4,n-2,n-1}; a(n-3) is not a summand; initial terms are 1,2,4.at n=16A049870
• Number of strings of numbers x(i=1..7) in 0..n with sum i*x(i)^3 equal to 7*n^3.at n=18A184724
• Triangle of coefficients of polynomials v(n,x) jointly generated with A208919; see the Formula section.at n=53A208920
• Numbers k such that (5*10^k - 143)/3 is prime.at n=24A271821
• Number of compositions (ordered partitions) of n into at most 6 prime parts (counting 1 as a prime).at n=42A347761
• Number of North-East lattice paths from (0,0) to (n,n) that do not cross the diagonal y = x at any even point (2*k,2*k).at n=9A376075