35271
domain: N
Appears in sequences
- a(n) = floor(binomial(n,10)/10).at n=21A011856
- Numbers k such that 231*2^k+1 is prime.at n=48A032492
- Number of trees with n nodes and 5 leaves.at n=21A055292
- Numbers k such that sigma(k-3) + sigma(k+3) = sigma(2*k).at n=29A067129
- Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in an em 1,1 1,2 2,2 2,3 3,3 in any orientation.at n=12A146148
- Number of compositions of n whose non-adjacent parts are strictly decreasing.at n=42A333193
- Starting values k of Collatz orbits that achieve a new minimum of Product_{j == 4 mod 6 in "3x+1" orbit of k} (j-1)/j.at n=19A391017