3356640

Appears in sequences

• Number of trees on n labeled vertices with degree at most 3.at n=8A003692
• First subdiagonal of generalized Fibonacci array A083856.at n=12A083860
• Number of unsigned permutations of size n whose "cycle graph" (or "breakpoint graph") is composed of alternating cycles of length at most 3.at n=11A132803
• Number of permutations of 2 copies of 1..n with all adjacent differences <= 4 in absolute value.at n=6A177285