73671

Appears in sequences

• Expansion of sum ( q^n / product( 1-q^k, k=1..5*n), n=0..inf ).at n=37A035297
• Number of compositions of n into parts of sizes == 1 mod 5 or 4 mod 5.at n=29A116975
• a(n) appears in the congruences modulo 4 or 32 of Markoff numbers m(n) = A002559(n) for odd or even m(n).at n=34A309376
• a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/2)} (-2)^k * a(k) * a(n-2*k-1).at n=19A352009
• Number of odd-length integer partitions of n with a unique mode.at n=49A363726