

A056233


Form an array with 3 rows: row 1 begins with 1; all rows are increasing; each entry is sum of 2 entries above it; each number appears at most once; smallest unused number is appended to first row if possible. Sequence gives row 3.


8



9, 17, 26, 33, 40, 47, 52, 57, 65, 74, 80, 85, 95, 110, 122, 129, 136, 143, 148, 156, 169, 179, 185, 191, 196, 202, 210, 216, 220, 225, 232, 239, 244, 249, 257, 266, 272, 277, 287, 300, 308, 312, 318, 326, 332, 337, 343, 349, 357, 369, 382
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OFFSET

1,1


LINKS



EXAMPLE

Array begins
1 2 4 7 8 10 12 ...
.3 6 11 15 18 ...
. 9 17 26 33 ...


PROG



CROSSREFS



KEYWORD

nonn,nice,easy


AUTHOR



STATUS

approved



