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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..62.

CROSSREFS

Cf. A064766, A064865, A065221-A065231, A065233-A065234.

Sequence in context: A078783 A273465 A125717 * A074170 A076543 A274648

Adjacent sequences:  A065229 A065230 A065231 * A065233 A065234 A065235

KEYWORD

easy,nonn

AUTHOR

Floor van Lamoen, Oct 22 2001

STATUS

approved

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Last modified November 13 19:25 EST 2018. Contains 317149 sequences. (Running on oeis4.)