200533921

Appears in sequences

• a(n) = (6*n + 5)^4.at n=19A016972
• a(n) = (7*n)^4.at n=17A016984
• a(n) = (8*n + 7)^4.at n=14A017152
• a(n) = (9*n + 2)^4.at n=13A017188
• a(n) = (10*n + 9)^4.at n=11A017380
• a(n) = (11*n + 9)^4.at n=10A017500
• a(n) = (12*n + 11)^4.at n=9A017656
• Numbers whose arithmetic derivative is equal to Euler totient function: n' = phi(n).at n=13A166374
• Irregular triangle read by rows in which row n gives denominators of the coefficients of the partition class polynomial Hpart_n(x), n >= 1.at n=35A222032
• Fourth powers that become prime when their most significant (leftmost) decimal digit is removed.at n=9A226092
• Numbers k such that A345048(k) is equal to A345049(k).at n=18A345051