68250

Appears in sequences

• Weight distribution of [50,21,12] code associated with Hoffman-Singleton and Higman-Sims graphs.at n=9A015064
• Weight distribution of [50,21,12] code associated with Hoffman-Singleton and Higman-Sims graphs.at n=16A015064
• Weight distribution of [50,22,7] code associated with Hoffman-Singleton and Higman-Sims graphs.at n=18A015066
• Weight distribution of [50,22,7] code associated with Hoffman-Singleton and Higman-Sims graphs.at n=32A015066
• a(n) = binomial(n+2,2) * binomial(n+7,2).at n=19A104676
• Triangle read by rows: T(n,k) = number of pairs of partitions of n that have block distance k (n >= 2, 2 <= k <= n).at n=23A193297
• Denominator of the rationals obtained from the e.g.f. D(1,x), a Debye function.at n=24A227540
• The hyper-Wiener index of the Kneser graph K(n,2) (n>=5).at n=21A228307
• Number of nonisomorphic proper colorings of partition star graph using six colors.at n=32A297570
• Number T(n,k) of derangements of [n] having exactly k peaks; triangle T(n,k), n>=0, 0<=k<=max(0,floor((n-1)/2)), read by rows.at n=23A303564
• a(n) = n*(n+1)*(n+2)*(n+3)*(2*n+1)/12.at n=12A356251
• Smallest k such that A361373(k) = n.at n=41A384442
• a(n) = 2*binomial(n,2) + 3*binomial(n,3) + 4*binomial(n,4).at n=26A384852