0,2
Vincenzo Librandi, Table of n, a(n) for n = 0..10000
(MAGMA) [(7*n+1)^4: n in [0..40]]; // Vincenzo Librandi, Jul 13 2011
Sequence in context: A043424 A138174 A180972 * A017068 A017260 A027859
Adjacent sequences: A016993 A016994 A016995 * A016997 A016998 A016999
nonn,easy
N. J. A. Sloane (njas(AT)research.att.com).