19554

Appears in sequences

• Numbers n such that 147*2^n-1 is prime.at n=30A050599
• Number of (n+1) X (3+1) 0..2 arrays colored with the upper median value of each 2 X 2 subblock.at n=10A235949
• Sum of the second largest parts in the partitions of n into 5 parts.at n=45A308826
• Number of subsets of {1..n} of which every subset has a different sum.at n=25A325864
• a(n) is the Wiener index of a sling on n+1 vertices.at n=48A349417
• The number of pairs of 3x3 matrices with elements from 0 to n such that the matrix product results in each element being the concatenation of the corresponding terms in base n.at n=11A375157