27162

Appears in sequences

• a(n) is the concatenation of n and 6n.at n=26A009440
• Numbers k such that sigma(k) = sigma(k+8).at n=27A015876
• Number of ways to tile a 5 X 2n room with 1x2 Tatami mats. At most 3 Tatami mats may meet at a point.at n=36A068924
• Multiples of 3018.at n=8A086746
• Diagonal sums of the number triangle associated to A086617.at n=18A108296
• G.f.: A(x) satisfies: coefficient of x^n in A(x)^(n+1)/(n+1) = 2^(n*(n-1)/2).at n=6A136653
• Convergent of an infinite product, a*b*c,...; a = [1,1,1,...], b = [1,0,2,0,2,0,2,...], c = [1,0,0,3,0,0,3,0,0,3,...],...at n=19A162506
• Least number k having n representations as the sum of the minimal number of biquadrates A002377(k).at n=17A185673
• Approximate series expansion of arccosh(exp(3*x) - sin(3*x)).at n=6A202366
• Number of (n+1) X (1+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal.at n=18A232582
• Number of (n+2)X(5+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=11A259003
• Expansion of (G(-x) / chi(-x))^2 in powers of x where chi() is a Ramanujan theta function and G() is a Rogers-Ramanujan function.at n=32A261866
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 462", based on the 5-celled von Neumann neighborhood.at n=43A272311
• The Padovan sequence A000931 doubled.at n=40A291289
• Number of special sums of integer partitions of n.at n=27A304796
• Number of partitions of the n-th n-gonal pyramidal number into distinct n-gonal pyramidal numbers.at n=51A337798
• Number of integer partitions of n where 2*(number of distinct parts) >= (number of parts).at n=43A361394