19473

Appears in sequences

• a(n) = a(n-1) + a(n-4); first four terms are 0,1,2,3.at n=31A078467
• A Catalan transform of F(n-1)-0^n.at n=10A109263
• Riordan array (1/(1 - x*c(x) - x^2*c(x)^2), x*c(x)) where c(x) is the g.f. of A000108.at n=57A109267
• Number of Carlitz compositions of n with exactly three descents.at n=12A241693
• Expansion of Product_{k>=0} 1/(1-x^(4*k+1))^3.at n=31A261632
• Number of partitions of n containing no part i of multiplicity i-1.at n=39A277102
• Growth series for group with presentation < S, T : S^2 = T^3 = (S*T)^12 = 1 >.at n=27A299253
• Difference between 3^n and the product of primes less than or equal to n.at n=9A319852
• Positions of 0's in A330314.at n=18A330325
• a(n) = Sum_{d|n} mu(n/d) * binomial(d,4).at n=27A346761
• Number of lattice paths from (0,0) to (i,n-2*i) that do not go above the diagonal x=y using steps in {(1,0), (0,1)}.at n=28A357654