145415

Appears in sequences

• Numbers k such that k and k^2 use only the digits 1, 2, 3, 4 and 5.at n=35A136968
• Numbers k such that k and k^2 use only the digits 1, 2, 4 and 5.at n=9A136987
• Numbers k such that k and k^2 use only the digits 1, 2, 4, 5 and 7.at n=20A136989
• Numbers k such that k and k^2 use only the digits 1, 2, 4, 5 and 8.at n=24A136990
• Numbers k such that k and k^2 use only the digits 1, 2, 4, 5 and 9.at n=17A136991
• Number of ways to partition an n X 4 grid into 4 connected equal-area regions.at n=8A167248
• T(n,m) = Number of ways to partition an nXm grid into 4 connected equal-area regions.at n=69A167260
• Number of tilings of a 9 X n rectangle with n nonominoes of any shape.at n=4A174253
• Numbers k such that the decimal expansions of both k and k^2 have 1 as smallest digit and 5 as largest digit.at n=12A256889