226007

Properties

Appears in sequences

• Number of strict first-order maximal independent sets in path graph.at n=43A007383
• Sum along upward diagonal of Pascal triangle from (but not including) halfway point.at n=27A010758
• Sum along upward diagonal of Pascal triangle from halfway point.at n=27A010759
• a(n) = T(2n,n+3), T given by A027948.at n=7A027951
• Partial sums of A053295.at n=13A053296
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (0, 1, 1), (1, -1, 0), (1, 1, 1)}.at n=9A150749
• Prime numbersat n=20106