61644

Appears in sequences

• Numbers whose base-4 representation contains exactly four 0's and four 3's.at n=24A045085
• a(n) = A080315(n) - 2^A000523(A080315(n)), i.e., the terms of A080315 without their most significant bit.at n=17A080316
• A014486-encoding of the Catalan mountain ranges with only even-length slopes allowed.at n=14A083932
• Triangle T(n,k) read by rows = number of partitions of n-set into k blocks with distinct sizes, k = 1..A003056(n).at n=30A131632
• Number of perfect rhythmic tilings of [0,3n-1] with triples.at n=13A261516
• Number of set partitions of [n] into three blocks with distinct sizes.at n=6A272515
• G.f. A(x) satisfies A(x) = ( 1 + 4*x*A(x)/(1 - x*A(x)) )^(1/2).at n=10A372018