20163

Appears in sequences

• a(n) = (4*n+1)*(4*n+3).at n=35A001539
• Expansion of 1/((1-2*x)*(1-7*x)*(1-8*x)).at n=4A016311
• a(n) = (n^2 - 1)*(n^2 - 3).at n=12A033596
• a(n) = least number not of form [ (a^2+b^2)/n ].at n=33A036574
• Partial sums of A051946.at n=8A050484
• Numbers n such that n + sum of prime factors of n = (n+1) + sum of prime factors of (n+1).at n=21A075654
• Numbers k such that (k+j) mod (2+j) = 1 for j from 0 to 8 and (k+9) mod 11 <> 1.at n=7A096026
• Ninth column of (1,5)-Pascal triangle A096940.at n=7A096946
• a(n) = (n+1)*(n+2)*(n+3)*(11*n^2 + 29*n + 20)/120.at n=10A114241
• Numbers that are divisible by the product of the digit-sums of their neighbors.at n=30A152826
• Sum of all odd numbers in Collatz (3x+1) trajectory of n.at n=46A213916
• Product of Lucas and Catalan numbers: a(n) = A000032(n+1)*A000108(n).at n=7A216541
• Number of partitions of n not having depth 1; see Comments.at n=41A238003
• Number of (n+2) X (1+2) 0..3 arrays with every consecutive three elements in every row and diagonal having exactly two distinct values, and in every column and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=16A252712
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 429", based on the 5-celled von Neumann neighborhood.at n=29A272113
• Fixed points of A275957; numbers n for which A060125(n) = A225901(n).at n=43A275843
• After a(0)=0, numbers n such that (A002828(1+n) = 1) and (A002828(4+n) = 4).at n=54A278491
• Records in A240751.at n=29A285312
• Average number of binary strings of length n with Levenshtein distance <= 3 from a uniform randomly sampled binary string of this length, rounded to nearest integer.at n=31A332918
• Starts of runs of 3 consecutive anti-tau numbers (A046642).at n=32A341780