22363

Appears in sequences

• Crystal ball sequence for 5-dimensional cubic lattice.at n=9A001847
• Number of subsequences of [ 1,...,n ] in which each odd number has an even neighbor.at n=16A007455
• Number of subsequences of [ 1,...,n ] in which each even number has an odd neighbor.at n=16A007481
• a(n) is the number of subsequences of [ 1, ..., 2n ] in which each odd number has an even neighbor.at n=8A007482
• Crystal ball sequence for 9-dimensional cubic lattice.at n=5A008419
• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = (natural numbers), t = (Lucas numbers).at n=15A024858
• A convolution triangle of numbers obtained from A001792.at n=49A030523
• Let Do(n)=A006566(n)=n-th dodecahedral number. Consider all integer triples (i,j,k), j >= k>0, with Do(i)=Do(j)+Do(k), ordered by increasing i; sequence gives j values.at n=7A053018
• Number of nodes in virtual, "optimal", chordal graphs of diameter 5, degree =n+1.at n=16A067969
• Expansion of g.f. x*(1+x)^4/(1-x)^6.at n=11A069038
• Non-balanced numbers in A015771.at n=34A078549
• Number triangle, equal to half of Delannoy square array A008288.at n=49A113139
• Crystal ball sequence for the lattice C_5.at n=5A142994
• Triangle read by rows: T(n,k) is the number of 2-compositions of n having length k (0 <= k <= n).at n=60A181289
• Partial sums of product of twin primes.at n=8A191746
• Triangle of coefficients of polynomials v(n,x) jointly generated with A210753; see the Formula section.at n=49A210754
• Riordan array ((1+x)/(1-x)^2, x(1+x)^2/(1-x)^2).at n=49A216182
• Irregular triangle read by rows formed by taking every other row of the Delannoy array (A008288) regarded as a triangle.at n=54A297191
• Left-hand half of triangle A297191.at n=33A297192
• Expansion of x * (d/dx) Sum_{k>=0} k!*x^(k*(k+1)/2)/Product_{j=1..k} (1 - x^j).at n=19A304797