121648

Appears in sequences

• Numbers n with property that for each single digit d of n, we can also see the decimal expansion of 2d as a substring of n.at n=1A135495
• Sum over each antidiagonal of A244306.at n=29A244307
• a(n) = n*(n + 5)*(n + 7)*(n + 10)/24 + 1.at n=36A323220