50664

Appears in sequences

• Base 7 representation of the concatenation of the first n numbers with the most significant digits first.at n=4A097582
• Square roots of the perfect squares in A136360; or numbers k such that k^4 is in A133459 = the sums of two nonzero pentagonal pyramidal numbers.at n=6A136361
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 211", based on the 5-celled von Neumann neighborhood.at n=42A270899