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A065232
Fill a triangular array by rows by writing numbers 1 up to b(0), 1 up to b(1), etc., where b(n) are the octagonal numbers. The first elements of the rows form a(n).
2
1, 1, 3, 6, 2, 7, 13, 20, 7, 16, 26, 37, 9, 22, 36, 51, 2, 19, 37, 56, 76, 1, 23, 46, 70, 95, 121, 15, 43, 72, 102, 133, 165, 22, 56, 91, 127, 164, 202, 16, 56, 97, 139, 182, 226, 271, 37, 84, 132, 181, 231, 282, 334, 46, 100, 155, 211, 268, 326, 385, 37, 98, 160
OFFSET
0,3
KEYWORD
easy,nonn
AUTHOR
Floor van Lamoen, Oct 22 2001
STATUS
approved