20418

Appears in sequences

• The second left hand column of triangle A167552.at n=40A167554
• Number of partitions of n such that the multiplicity of the least part is a part.at n=41A240493
• Number of partitions p of n such that floor(mean(p)) and ceiling(mean(p)) are parts of p.at n=43A241340
• Numbers equal to the sum of three oblong numbers in arithmetic progression.at n=42A292314
• Number of partitions of n whose least part is a multiple of 3.at n=58A363094
• a(n) = Sum_{j=1..n} Sum_{i=1..n} (j mod i).at n=44A367379
• Number of maximum sized subsets of {1..n} such that every pair of distinct elements has a different difference.at n=44A382395
• Consecutive states of the linear congruential pseudo-random number generator 254*s mod (2^16+1) when started at s=1.at n=21A384934