35224

Appears in sequences

• Expansion of sum ( q^n / product( 1-q^k, k=1..6*n), n=0..inf ).at n=33A035298
• Number of n-digit numbers with nonzero multiplicative digital root 1.at n=5A051812
• Heptagonal numbers divisible by 7.at n=34A117795
• Heptagonal numbers A000566 which are the sum of two other heptagonal numbers > 0.at n=13A133251
• Triangle read by rows: T(n,k) is the number of paths of length n in the first quadrant, starting at the origin, ending at height k and consisting of 2 kind of upsteps U=(1,1) (U1 and U2), 3 kind of flatsteps F=(1,0) (F1, F2 and F3) and 1 kind of downsteps D=(1,-1).at n=31A134426
• Sum of primes between successive squares of primes.at n=12A175037
• Number of 4-step one or two space at a time bishop's tours on an n X n board summed over all starting positions.at n=12A187048
• Least heptagonal (7-gonal) number that is the product of n heptagonal numbers greater than 1.at n=2A225067
• Fundamental discriminants d uniquely characterizing all complex biquadratic fields Q(sqrt(-3),sqrt(d)) which have 3-class group of type (3,3) and second 3-class group isomorphic to SmallGroup(729,34).at n=19A250241
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 825", based on the 5-celled von Neumann neighborhood.at n=31A273581
• Number of sets of nonempty words with a total of n letters over binary alphabet such that all letters occur at least once in the set.at n=9A320203
• Square array read by antidiagonals: the n-th row lists n-gonal numbers that are products of smaller n-gonal numbers.at n=41A374370
• Numbers k such that sigma(k) = psi(k) + tau(k) + omega(k)^7.at n=4A392385