25342

Appears in sequences

• a(n) = 2*a(n-1) + a(n-2); a(0)=1, a(1)=4.at n=11A048654
• Bisection of A048654.at n=5A100525
• Fixed-j dispersion for Q = 8: Square array D(g,h) (g, h >= 1), read by ascending antidiagonals.at n=41A120860
• a(2n) = A100525(n), a(2n+1) = A001653(n+1); a Pellian-related sequence.at n=10A129346
• 3-comma numbers: n occurs in the sequence S[k+1]=S[k]+10*last_digit(S[k-1])+first_digit(S[k]) for three different splittings n=concat(S[0],S[1]).at n=31A166513
• Integers k such that 2*k^2 - 7 is a square.at n=11A217975
• a(n) = 2*a(n - 2) + a(n - 4) with a(0) = a(1) = 2, a(2) = 1, a(3) = 3.at n=24A266504
• a(n) = 2*a(n-4) + a(n-8) for n >= 8.at n=48A266506
• Number of partitions of n such that 4*(greatest part) >= (number of parts).at n=37A347868