1166400

Appears in sequences

• Squares of even pentagonal numbers.at n=13A014770
• Arithmetic progression of at least 5 terms having the same value of phi start at these numbers.at n=6A050515
• An arithmetic progression of at least 6 terms having the same value of phi starts at these numbers.at n=1A050518
• a(n) = 25*6^(n-2), with a(0)=1 and a(1)=4.at n=8A055846
• k^2 is a term if k^2 + (k-1)^2 and k^2 + (k+1)^2 are primes.at n=29A075577
• a(n) = (3^(n-1))*(n!)^2.at n=4A080141
• Squares of pentagonal numbers: a(n) = (1/4)*n^2*(3*n-1)^2.at n=27A100255
• Least number k which can be written as k^2 * j, 0 < j <= k in n ways.at n=9A104024
• a(n) = ((n+1)*(2*n-1))^2.at n=23A123198
• a(n) = (n^3 + n^2)*6^n.at n=4A129006
• Squares for which no smaller square has the same number of divisors.at n=31A166721
• Totally multiplicative sequence with a(p) = 6*(p+3) for prime p.at n=35A167325
• Prime encoded sequence of generic integer partitions of n in the antilexicographic order of the partitions.at n=30A182911
• Smallest number having exactly t divisors, where t is the n-th triprime (A014612).at n=32A185445
• (n-1)-st elementary symmetric function of the first n terms of (1,2,3,1,2,3,1,2,3,...).at n=19A203162
• Number of (n+1)X2 0..3 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=4A204303
• Number of (n+1)X6 0..3 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=0A204307
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=10A204309
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the sums of 2X2 subblocks nondecreasing rightwards and downwards.at n=14A204309
• The Wiener index of the linear phenylene with n hexagons.at n=39A224454