43980

Appears in sequences

• Convolution of A000203 with itself.at n=44A000385
• Numbers k such that 2*3^k - 5 is prime.at n=23A057910
• Number of walks of length n on square lattice, starting at origin, staying in first, second and third quadrants.at n=8A060898
• Numbers with no 1's in base 3, 4 & 10 expansions.at n=31A117564
• Number of nondecreasing arrangements of n+2 numbers in 0..8 with each number being the sum mod 9 of two others.at n=8A183911
• A000904(n) - (-1)^n.at n=7A335693
• Number of partitions of the (n+3)-multiset {0,...,0,1,2,3} with n 0's into distinct multisets.at n=25A346823