84903

Appears in sequences

• Number of reversible strings with n-1 beads of 2 colors. 5 beads are black. String is not palindromic.at n=25A032092
• Numbers k such that 60*R_k + 1 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=28A056658
• Expansion of (3+10*x+3*x^2)/(1-x)^12.at n=6A059624
• Number of n-element subsets of [n+5] having an even sum.at n=26A282081