44604

Appears in sequences

• Sum of terms in n-th row of A077164.at n=35A077167
• Structured small rhombicosidodecahedral numbers.at n=13A100148
• Triangle T(n,k), read by rows, given by (0, 2, 3, 4, 6, 6, 9, 8, 12, 10, 15, ...) DELTA (1, 0, 1, 0, 1, 0, 1, 0, 1, 0, ...) where DELTA is the operator defined in A084938.at n=51A185285
• Number of ways to place 2 nonattacking nightriders on an n X n cylindrical board.at n=17A196810
• Sum_{0<j<k<=n} (k^4-j^4).at n=6A206811
• Trisection of A107926: The least number k such that there are primes p and q with p - q = 6*n+4, p + q = k, and p the least such prime >= k/2.at n=43A234956
• Irregular triangle read by rows: T(n,k) (n>=2, 1<=k<=n) gives number of arrangements of the elements from the multiset M(n, 4) into exactly k disjoint cycles.at n=40A245184
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 421", based on the 5-celled von Neumann neighborhood.at n=39A272051
• Decimal representation of binary numbers with string structure 10s00, s in {0,1}*, such that it results in a non-palindromic cycle of length 4 in the Reverse and Add! procedure in base 2.at n=27A306514
• First differences of A063990 (amicable numbers arranged in increasing order).at n=15A306613
• Triangle read by rows: The number of chord diagrams with n chords and k topologically connected components, 0 <= k <= n.at n=30A322402