22016

Appears in sequences

• Fourier coefficients of E_{infinity,4}.at n=28A007331
• Even octagonal numbers: a(n) = 4*n*(3*n-1).at n=43A014642
• a(n) = (1/3)*(n^2 + 2*n + 3)*(n+1)^2.at n=15A014820
• Base 7 digits are, in order, the first n terms of the periodic sequence with initial period 1,2,1.at n=5A037540
• a(n) = A004017(n)/2.at n=13A045825
• a(n) is the number of occurrences of 11s in the palindromic compositions of m=2*n-1 = the number of occurrences of 12s in the palindromic compositions of m=2*n.at n=9A079863
• a(n) = (2^(n+1) + (-4)^n)/3.at n=8A083086
• Numbers which are sums of two, three and four cubes.at n=27A085337
• Numbers which are sums of two, three, four and also sums of five cubes.at n=26A085338
• a(n) = - a(n-1) + 5(a(n-2) + a(n-3)) - 2(a(n-4) + a(n-5)) - 8(a(n-6) + a(n-7)).at n=17A090597
• Number of 1-2-3-avoiding permutations with exactly thrice the 1-3-2 pattern.at n=9A093374
• phi(n) + n is a cube.at n=32A114074
• a(n) = a(n-1) + a(n-2) + a(n-3) - a(n-4) with a(0) = a(1) = a(2) = 0, a(3) = 1.at n=22A116732
• Octagonal numbers for which the product of the digits is also an octagonal number.at n=39A117083
• Row sums of (denominator) triangle A119948.at n=7A119950
• Octagonal numbers equal to S*(3S - 2) with 3S - 2 = k^2 and S semiprime.at n=5A124106
• Octagonal numbers of the form C*(3C - 2) with 3C - 2 = k^2 and C a composite number.at n=6A125511
• a(n)=8*a(n-1)+72*a(n-2) for n>=3, a(0)=1, a(1)=8, a(2)=128 .at n=4A133680
• Terms of A024670 that are not in A141805.at n=27A141806
• Ulam's spiral (WSW spoke).at n=37A143854