19059

Appears in sequences

• Number of achiral planted trees with n nodes.at n=20A005627
• Number of acyclic disubstituted alkanes with n carbon atoms and distinct substituents.at n=9A005960
• Leading term of n-th row of A081491.at n=39A081490
• Number of rectangles in a pyramid built with squares. The squares counted in A092498 are excluded.at n=17A134507
• Indices k such that A019326(k)=Phi[k](8) is prime, where Phi is a cyclotomic polynomial.at n=33A138938
• Number of partitions of n such that the number of parts having multiplicity >1 is a part and the number of distinct parts is a part.at n=44A241409
• Numbers k such that (23*10^k + 91)/3 is prime.at n=28A271645
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 1006", based on the 5-celled von Neumann neighborhood.at n=34A273861
• Numbers k such that 465*2^k+1 is prime.at n=32A318193