19286

Appears in sequences

• Convolution of natural numbers >= 3 and Fibonacci numbers.at n=16A023552
• Triangle read by rows, based on a simple Jacobsthal number recursion rule.at n=52A114163
• Triangle read by rows: T(n,k) is the number of Motzkin paths of length n having k ascents (0<=k<=floor(n/2)); an ascent is a maximal string of upsteps.at n=52A114580
• Number of n X n binary arrays with rows and columns, considered as binary numbers, in nondecreasing order, and no more than 4 ones in any row or column.at n=4A162046
• Number of binary words w of length n such that the number of distinct blocks of length k that w contains is <= k+2 for all k.at n=31A297526
• Matula-Goebel numbers of semi-lone-child-avoiding rooted identity trees.at n=44A331963
• Number of compositions (ordered partitions) of n into distinct parts such that the smallest part is equal to the number of parts.at n=54A339446