127921

Properties

Appears in sequences

• Sum along upward diagonal of Pascal triangle from (but not including) halfway point.at n=26A010758
• Sum along upward diagonal of Pascal triangle from halfway point.at n=26A010759
• a(n) = T(2n+1, n+4), T given by A027935.at n=6A027944
• Partial sums of A053295.at n=12A053296
• a(n) is the sum of (3^n mod 2^k) for k such that 2^k < 3^n.at n=10A337921
• Number of chordless cycles of length >=4 in the n-Goldberg graph.at n=7A362542
• Number of distinct sums i^3 + j^3 + k^3 + l^3 for 0<=i<=j<=k<=l<=n.at n=47A374711
• Prime numbersat n=11982