271473

Appears in sequences

• Sum of n-th Lucas number greater than 3 and n-th number that is 1 or is not a Fibonacci number.at n=23A023489
• a(n) = b(n) + d(n), where b(n) = (n-th Lucas number > 3) and d(n) = (n-th number that is 1 or is not a Lucas number).at n=23A023497
• a(n) = b(n) + d(n), where b(n) = (n-th Lucas number > 1) and d(n) = (n-th number that is 1, 2, or 3, or is not a Lucas number).at n=24A023501
• Expansion of (1-x)/(1-x-2x^2+x^4).at n=21A052969
• The (1,4)-entry in the matrix M^n, where M is the 4 X 4 matrix {{0, -1, -1, 1}, {1, -1, 0, 0}, {0, 1, 1, 0}, {0, 0, 1, 1 }}.at n=44A122789