43076
domain: N
Appears in sequences
- Mixed partitions of n.at n=40A002096
- Expansion of (1+2*x+3*x^2)/((1-x)^3*(1-x^2)).at n=43A055232
- Numbers k such that the concatenation of k with 4*k gives a square.at n=5A115535
- Values n, where n = p * q, and n, p, and q together contain all 10 digits at least once, and no digit is in more than one of n, p or q.at n=26A253173
- Expansion of Product_{k>=1} (1 + x^(k^2))^(k^2).at n=54A291649
- Numbers k such that (14*10^k + 211)/9 is prime.at n=19A294941
- Number of powerful uniform rooted trees with n nodes.at n=38A318689
- Number of regions in a "cross" of width 3 and height n (see Comments for definition).at n=20A331455