43656

Appears in sequences

• Number of compositions of 2n in which each part has even multiplicity.at n=10A130495
• Numbers m such that m*reversal(m) contains every decimal digit exactly once.at n=34A178929
• a(n) = n*(1 + n)*(3 - 4*n + 4*n^2)/6.at n=15A213840
• Number of partitions of n having (sum of odd parts) >= (sum of even parts).at n=44A239263
• a(n) = n*(n + 1)*(n + 2)*(7*n - 5)/12.at n=16A264850
• a(n) = (n^2 - 3*n + 6)*binomial(n+2,3)/4.at n=16A301973
• Expansion of e.g.f. 1 / ( 1 - Sum_{k>=0} x^(3*k+4) / (3*k+4)! ).at n=17A365913