20348

Appears in sequences

• Numbers k such that k^2 contains only digits {0,1,4}, not ending with zero.at n=13A058413
• a(n) = binomial(n+6,5) - 1.at n=15A062988
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (0, 0, 1), (0, 1, -1), (0, 1, 1), (1, 0, 1)}.at n=7A151169
• Triangle read by rows: the Fibonacci triangle times Pascal's triangle (A007318).at n=47A201166
• Expansion of Product_{k>=0} 1/(1-x^(5*k+1))^(5*k+1).at n=39A285049
• Sum of all distinct multiplicities in the partitions of 2n into n parts.at n=22A373104