155248

Appears in sequences

• Number of n-bead necklaces labeled with numbers 1..4 allowing reversal, with no adjacent beads differing by more than 1.at n=15A208717
• Numbers k that divide the base-5 reversal of k.at n=26A222816
• Number of compositions of 5*n-3 into parts 4 and 5.at n=17A369851
• Expansion of 1 / ((1-x)^4 - x^5).at n=18A390044
• a(n) = Sum_{k=0..floor(n/2)} binomial(k+1,2*n-4*k+1).at n=41A392489