

A271589


Array read by antidiagonals: column k lists the 2Stöhr sequence composed of terms rejected from column k1.


2



1, 3, 2, 8, 5, 4, 17, 9, 6, 7, 44, 20, 11, 12, 10, 125, 47, 24, 15, 14, 13, 368, 128, 51, 26, 18, 21, 16, 1097, 371, 132, 53, 27, 35, 23, 19, 3284, 1100, 375, 134, 56, 29, 36, 30, 22, 9845, 3287, 1104, 377, 137, 60, 33, 38, 32, 25, 29528, 9848, 3291, 1106
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OFFSET

1,2


COMMENTS

The first column of this array is the sequence that rejects the sum of any previous pair of terms (the 2Stöhr sequence A033627). The second column takes the remaining numbers and rejects the sums of pairs of its previous terms, etc.
The first column consists of all numbers equivalent to 1 mod 3, and also 2. The second column consists of all numbers equivalent to 3 mod 9 and 5 mod 9, and also 6. The kth column includes 3^k, 2*3^k, and 4*3^k, and in general every term in the (k1)th column multiplied by 3.


LINKS

Max Barrentine, Table of n, a(n) for n = 1..2080
Eric Weisstein's World of Mathematics, Stöhr Sequence


EXAMPLE

From the topleft corner, this array starts:
1 3 8 17 44 125
2 5 9 20 47 128
4 6 11 24 51 132
7 12 15 26 53 134
10 14 18 27 56 137
13 21 35 29 60 141


CROSSREFS

Cf. A033627.
Sequence in context: A127541 A053219 A173030 * A083087 A191724 A191433
Adjacent sequences: A271586 A271587 A271588 * A271590 A271591 A271592


KEYWORD

nonn,tabl


AUTHOR

Max Barrentine, Apr 10 2016


STATUS

approved



