18892

Appears in sequences

• a(n) is the solution to the postage stamp problem with 4 denominations and n stamps.at n=33A001209
• Numbers k such that 2^k - prime(k) is prime.at n=18A078583
• Numbers k such that either 2^k + prime(k) or 2^k - prime(k) is prime.at n=42A130640
• Number of n-cell fixed tree-like polycubes in 4 dimensions.at n=5A191094
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 347", based on the 5-celled von Neumann neighborhood.at n=30A271299
• Numbers that cannot be expressed as the sum of one or more numbers without any repeated digits.at n=3A342080
• Arises from enumeration of a certain class of zig-zag knight's paths on the square grid.at n=27A368377