88600

Appears in sequences

• Thickened pyramidal numbers: a(n) = 2*(n+1)*n + Sum_{i=1..n} (4*i*(i-1) + 1).at n=40A050533
• Euler transform of reduced totient function psi(n), cf. A002322.at n=26A061257
• Row sums in A100781.at n=39A100784
• Number of n X 6 0..2 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 3.at n=34A239359