A056238 Nontrivial palindromic denominators in Leibniz's harmonic triangle.

6, 252, 272, 858, 2772, 4004, 6006, 289982, 2370732, 2629262, 6039306, 27999972, 28233282, 2704884072, 20278187202, 20591819502, 2592587852952, 2936231326392, 21809166190812, 27237788773272, 229145919541922

Offset

1,1

Links

Table of n, a(n) for n=1..21.

Crossrefs

Cf. A007622.

Sequence in context: A206307 A229475 A281054 * A335158 A221822 A361186

Adjacent sequences: A056235 A056236 A056237 * A056239 A056240 A056241

Keyword

nonn,base

Author

Robert G. Wilson v, Aug 21 2000

Status

approved