35556

Appears in sequences

• a(n) = (1/(4*n)) * Sum_{d|n} mu(n/d) * binomial(2*d, d)^2.at n=5A028576
• a(n+1) = a(n)/2 if 2|a(n), a(n)/3 if 3|a(n), a(n)/5 if 5|a(n), a(n)/7 if 7|a(n), a(n)/11 if 11|a(n), a(n)/13 if 13|a(n), otherwise 17*a(n)+1.at n=19A057534
• Mersenne numbers with digits sorted in increasing order and zeros suppressed.at n=15A135374
• Number of ways to choose a set partition of a strict integer partition of n.at n=34A294617
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2)*b(n), where a(0) = 1, a(1) = 2, b(0) = 3, b(1) = 4, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences.at n=15A296266
• Number of nonequivalent noncrossing caterpillars with n edges up to rotation and relection.at n=10A361360
• Triangle read by rows: T(n,k) is the number of partitions of a 3-colored set of n objects into at most k parts with 0 <= k <= n.at n=63A382045