38896

Appears in sequences

• Theta series of A*_16 lattice.at n=35A023928
• a(n) = binomial(2*n, n) mod binomial(2*n-2, n-1).at n=8A024483
• a(n) = a(n-1)+ceiling(a(n-2)/2) with a(0)=0, a(1)=1.at n=34A064323
• a(0) = 1; for n>0, if gcd(a(n-1),n) = 1 then a(n) = n*a(n-1) else a(n) = least integer multiple of a(n-1)/n.at n=17A094299
• Triangle read by rows: T(n,k) = binomial(2n+1, n-k)*Fibonacci(2k+1), 0 <= k <= n.at n=37A103245
• Expansion of e.g.f. Bessel_I(2,2x) + 2*Bessel_I(3,2x) + Bessel_I(4,2x).at n=17A116385
• Triangle read by rows: T(n,k)=k*binomial(n-2k,3k+1) (n>=6, 0<=k<=(n-1)/5).at n=31A138779
• a(n) = 1 + (1200 + (634 + (225 + (85 + (15 + n)*n)*n)*n)*n)*n/720.at n=15A145128
• The sum of all the entries in an n X n Cayley table for multiplication in Z_n.at n=43A160255
• a(n) = a(n-1) + a(n-2) - floor(a(n-2)/2), starting 2,1.at n=33A173497
• Number of collinear point 8-tuples in an n X n cubical grid.at n=12A178260
• Convolution square of A058187, the tetrahedral series with repeats.at n=21A178440
• Denominators of the sum of the reciprocals of the Collatz (3x+1) sequence beginning at n.at n=10A225784
• Denominators of the sum of the reciprocals of the Collatz (3x+1) sequence beginning at n.at n=21A225784
• Denominators of the sum of the reciprocals of the Collatz (3x+1) sequence beginning at n.at n=27A225784
• Oscillating orbitals over n sectors (nonpositive values indicating there exist none).at n=18A232500
• Number of preferential arrangements of n labeled elements such that the minimal number of elements per rank equals 7.at n=10A245860
• Expansion of ( 2-x^2 ) / (x^2+2*x-1)^2 .at n=9A261056
• a(n) = (n-1)*Catalan(n).at n=9A276666
• Figurate numbers based on the small stellated dodecahedron: a(n) = n*(21*n^2 - 33*n + 14)/2.at n=15A318159