56926

Appears in sequences

• Number of binary strings of length n with no substrings equal to 0000 or 0010.at n=18A164387
• The number of permutations of length n sortable by 2 prefix block transpositions.at n=22A228394
• Sum of the fourth largest parts of the partitions of n into 9 parts.at n=48A326470
• a(n)/A002939(n+1) is the Kirchhoff index of the disjoint union of two complete graphs each on n and n+1 vertices with the empty graph on n+1 vertices.at n=14A338588