33460

Appears in sequences

• Number of polynomials of height n: a(1)=1, a(2)=1, a(3)=4, a(n) = 2*a(n-1) + a(n-2) + 2 for n >= 4.at n=12A005409
• Integer part of log(n!)^(1 + log(log(1 + n))).at n=35A062475
• Nearest integer to log(n!)^(1 + log(log(1 + n))).at n=35A062476
• a(n) = A000129(n) + (-1)^n.at n=13A111954
• (1/4)*number of nonsquare rectangles with corners on an n X n grid of points.at n=21A122225
• Pell numbers A000129 with 0 instead of last digit.at n=13A131726
• Möbius transform of the Pell numbers (A000129).at n=12A133726
• a(n) = prime(prime(prime(prime(n) - 1) - 1) - 1) - 1, where prime(n) is the n-th prime.at n=24A141217
• a(n) = 6*a(n-1) - a(n-2) + 4 with n > 1, a(0)=0, a(1)=4.at n=6A182190
• G.f.: Sum_{n>=1} moebius(n)*x^n/(1 - A002203(n)*x^n + (-1)^n*x^(2*n)), where A002203 is the companion Pell numbers.at n=12A204385
• Row sums of triangle in A152719.at n=22A238375
• 27-gonal pyramidal numbers: a(n) = n*(n+1)*(25*n-22)/6.at n=20A256647
• a(n) = A048739(n-1) mod A000129(floor(n/2)).at n=24A270708
• a(n) = A000010(A000129(n)).at n=12A272040
• Partial sums of A087207.at n=48A288566