19275

Appears in sequences

• Base-4 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,2,3.at n=7A037674
• List of codewords in binary lexicode with Hamming distance 7 written as decimal numbers.at n=17A075937
• Number of partitions of n-set with at least one even block.at n=8A089005
• Smallest GF2X-Matula number i which encodes a tree of n nodes, i.e., for which A091238(i) = n.at n=27A091239
• Partial sums of A023200.at n=42A172112
• Triangle T(n,r), read by rows, where the r-th column is expansion of A(x)^r, with A(x) = x * (x+1) * (2*x^4+4*x^3-2*x+1) * (x^4+2*x^3-x+1) / (x^2+x-1)^6.at n=45A187055
• Positive integers with the property that if the base-4 representation is reversed the result is three times the original number.at n=4A223078
• First members C of two non-consecutive numbers such that the sums of their cubes are equal to centered cube numbers and to at least one other sum of two cubes, i.e., A = B^3 + (B+1)^3 = C^3 + D^3 = E^3 + F^3.at n=8A352222