19738

Appears in sequences

• Number of paraffins.at n=34A006001
• Numerators of continued fraction convergents to sqrt(149).at n=6A041272
• Sums of members of groups in A076062.at n=33A076060
• Triangle read by rows: T(n,k) is number of paths from (0,0) to (3n,0) that stay in the first quadrant (but may touch the horizontal axis), consisting of steps u=(2,1),U=(1,2), or d=(1,-1) and have k hills (a hill is either a ud or a Udd starting at the x-axis).at n=21A108431
• Number of paths from (0,0) to (3n,0) that stay in the first quadrant (but may touch the horizontal axis), consisting of steps u=(2,1),U=(1,2), or d=(1,-1) and have no hills (a hill is either a ud or a Udd starting at the x-axis).at n=6A108432
• Row sums of triangle A135858.at n=27A135859
• Sum of first n terms divides the concatenation of the first n terms.at n=17A166064
• Number of partitions p of n containing ceiling((min(p) + max(p))/2) as a part.at n=42A238484
• Solution of the complementary equation a(n) = 2*a(n-1) - a(n-2) + b(n-1), where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences.at n=45A294866
• Expansion of 1/2 * Product_{i>=0, j>=0, k>=0} (1 + x^(i^2 + j^2 + k^2)).at n=21A321381