A140401 Let S be the set of numbers formed from the sum of three distinct elements of A140398, or the sum of three distinct elements of A140399, or the sum of three distinct elements of A140400; sequence gives complement of S.

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 18, 21, 23, 26, 29, 31, 34, 39, 42, 47, 55, 60, 68, 76, 81, 89, 102, 110, 123, 144, 157, 178, 199, 212, 233, 267, 288, 322, 377, 411, 466, 521, 555, 610, 699, 754, 843, 987

Offset

1,2

Links

Table of n, a(n) for n=1..53.

Formula

It appears that this consists of the following numbers: { F_{k}, F_{k} + F_{k-3}, F_{k} + F_{k-2}, F_{2k} + F_{2k-5}, F_{2k+1} - F_{2k-4}, F_{2k+1} + F_{2k-3} }, where F (A000045) are the Fibonacci numbers and k and other subscripts are restricted to positive values.

Crossrefs

Cf. A140398, A140399, A140400, A140397, A005652, A005653, A078588.

Sequence in context: A095392 A232528 A254075 * A272916 A138389 A346288

Adjacent sequences: A140398 A140399 A140400 * A140402 A140403 A140404

Keyword

nonn,more

Author

Fred Lunnon, Jun 20 2008

Status

approved