20272

Appears in sequences

• a(n) = 14*a(n-1) - a(n-2) + 6 for n>1, a(0)=0, a(1)=7.at n=4A001921
• Numbers m such that 2*phi(m) = phi(m+1).at n=22A050472
• Integers that can be expressed as the sum of consecutive primes in exactly 5 ways.at n=7A055000
• Non-palindromic number and its reversal are both multiples of 14.at n=39A062913
• Integers expressible as the sum of (at least two) consecutive primes in at least 5 ways.at n=1A067375
• Number of permutations (p(1),p(2),...,p(n)) of (1,2,...,n) such that p(i)-i is in {-2,-1,3} for all i=1,...,n.at n=35A079999
• 7th binomial transform of (1,0,1,0,1,...), A059841.at n=5A081189
• Binomial transform of A000796.at n=12A110810
• Terms in A112039 that are divisible by 3, divided by 3.at n=31A112040
• a(n) = 4*a(n-1) - 3*a(n-2), for n>3, with a(0) = 14, a(1) = 133, a(2) = 616, and a(3) = 2128.at n=5A113976
• Numbers of the form x^5 + 10*x^3*y^2 + 5*x*y^4 (where x,y are integers).at n=27A135794
• Numbers k with property that (k^2 mod prime(k)) < 10.at n=14A152526
• Expansion of (x-1)^2/(1-x^2-2*x^3).at n=31A159286
• Number of reduced words of length n in the Weyl group E_8 on 8 generators and order 696729600.at n=11A162494
• Number of arrays of length n that are sums of 6 consecutive elements of length n+5 permutations of 0..n+4.at n=3A229564
• T(n,k) = number of arrays of length n that are sums of k consecutive elements of length n+k-1 permutations of 0..n+k-2.at n=39A229565
• Number of arrays of length 4 that are sums of n consecutive elements of length 4+n-1 permutations of 0..4+n-2.at n=5A229567
• Irregular triangle read by rows: row n lists the rank sizes of the "electrical" poset EP_n of circular planar graphs with n boundary vertices.at n=68A232967
• The number of P-positions in the game of Nim with up to four piles, allowing for piles of zero, such that the total number of objects in all piles doesn't exceed 2n.at n=31A237686
• Expansion of (-1 + Product_{k>=1} 1 / (1 + (-x)^k))^7.at n=16A341246