26986

Appears in sequences

• Base-9 palindromes that start with 4.at n=29A043031
• Tribonacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3), with a(0) = 1, a(1) = 1, a(2) = 0.at n=19A081172
• Sum of first n terms divides the concatenation of the first n terms.at n=14A166064
• a(n) = (3^(n+2)+11)/2 - 5*2^(n+1) + 2*n.at n=8A298564