28397

Appears in sequences

• a(n) = 1 + 1/log(gamma(2-a(n-1))).at n=11A098081
• Triangle T(n,k) = A176492(n,k) + A008292(n+1,k+1) - 1 read along rows 0<=k<=n.at n=24A176492
• Number of nX6 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=6A300767
• Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=5A300768
• Number of non-isomorphic multiset partitions of weight n in which both the multiset union of the parts and the multiset union of the dual parts are aperiodic.at n=10A320800
• a(1) = a(2) = 1; a(n+2) = 1 + Sum_{d|n} a(n/d) * a(d).at n=28A346116