103110

Appears in sequences

• Truncated square pyramid numbers: a(n) = Sum_{k = n..2*n} k^2.at n=35A050409
• Number of even entries in the character table of the symmetric group S_n.at n=18A335686
• Expansion of g.f. A(x,y) satisfying y/x = Sum_{n=-oo..+oo} x^(n*(3*n+1)/2) * (A(x,y)^(3*n) - 1/A(x,y)^(3*n+1)), as a triangle read by rows.at n=31A361050