24822

Appears in sequences

• Number of partitions satisfying cn(0,5) <= cn(1,5) and cn(0,5) <= cn(4,5).at n=40A039837
• Difference between average of smallest prime greater than n^3 and largest prime less than (n+1)^3 and n-th pronic [=n(n+1)].at n=27A063036
• The number of distinct parts in the partition sequence lambda(n) formed by the recurrence lambda(1) = 1 and lambda(n+1) is the sum of lambda(n) and its conjugate.at n=30A064660
• Number of essentially different semi-magic squares of order 3 with semimagic sum n.at n=33A122751
• Let P be Pascal's triangle A007318 and let N be Narayana's triangle A001263, both regarded as lower triangular matrices. Sequence gives triangle obtained from P*N, read by rows.at n=50A126182
• Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k UU's (doublerises) (n >= 1; 0 <= k <= n-1).at n=49A128718
• a(n) = 100*n^2 - 49*n + 6.at n=15A157651
• a(n) = n*(14*n + 3).at n=42A195025
• Number of n X 2 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 n X 2 array.at n=24A219293
• Sum of the smallest parts of the partitions of 4n into 4 parts.at n=20A238702
• Number of partitions of n where the difference between consecutive parts is at most 6.at n=40A238866
• a(n) = n*(7*n^2 + 15*n + 8)/6.at n=27A245301
• Consider a number x > 1. Take the sum of its digits. Repeat the process deleting the first addendum and adding the previous sum. The sequence lists the numbers that after some iterations reach the Euler totient function of x.at n=21A269310
• Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k L-shaped corners (n>=2, k>=0).at n=61A273717
• Expansion of 1/(1 - Sum_{k>=2} mu(k)^2*x^k), where mu(k) is the Moebius function (A008683).at n=27A280197
• Number of (2k+1)-ary quasitrivial semigroups that have two neutral elements on an n-element set.at n=6A308354
• Expansion of e.g.f. cosh( (exp(3*x) - 1)/3 ).at n=7A357649