350704366

Appears in sequences

• Indices of triangular numbers which are also heptagonal.at n=7A039835
• a(n) = F(3) + F(6) + F(9) + ... + F(3n), F(n) = Fibonacci numbers A000045.at n=14A099919
• Partial sums of odd Fibonacci numbers (A014437).at n=27A174542
• Lower (1/2)-midsequence of (F(2n)) and (F(2n+1)), where F=A000045 (Fibonacci numbers); see Comments.at n=21A387778