45246

Appears in sequences

• Number of partitions of n into parts not of the form 19k, 19k+7 or 19k-7. Also number of partitions with at most 6 parts of size 1 and differences between parts at distance 8 are greater than 1.at n=43A035976
• Euler transform of period 5 sequence [ 2, 1, 1, 2, 1, ...].at n=28A205183
• Composite numbers whose sum of aliquot parts divides the sum of the aliquot parts of the numbers less than or equal to n and not relatively prime to n.at n=27A249109
• a(1) = 1; a(n) = Sum_{k=1..n} a(ceiling((n-1)/k)).at n=49A290845