103025

Appears in sequences

• a(n) = T(2*n, n+1), T given by A027011.at n=9A027012
• T(n,n+3), T given by A027960.at n=17A027963
• a(n) = (2*n - 1)*(3*n^2 - 3*n + 2)/2.at n=32A063491
• Starting positions of strings of four 2's in the decimal expansion of Pi.at n=13A083607
• Binomial transform of [1, 7, 17, 17, 6, 0, 0, 0, ...].at n=24A132117