130934

Appears in sequences

• a(n) = (8*(2^n) - n^2 - 3*n - 6)/2.at n=15A048492
• a(n) = (2*F(3*n) - F(n))/3, where F=A000045 (the Fibonacci sequence).at n=9A049675
• Submain diagonal of array A265903: a(n) = A265903(n+1, n).at n=11A265909