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Triangular array read by rows: T(n,k) = A337946(n) + A337946(k), for 1 <= k <= n.
5

%I #17 Oct 09 2020 17:20:17

%S 2,4,6,8,10,14,13,15,19,24,23,25,29,34,44,31,33,37,42,52,60,48,50,54,

%T 59,69,77,94,62,64,68,73,83,91,108,122,86,88,92,97,107,115,132,146,

%U 170,114,116,120,125,135,143,160,174,198,226,127,129,133,138,148,156,173,187,211,239,252

%N Triangular array read by rows: T(n,k) = A337946(n) + A337946(k), for 1 <= k <= n.

%C This sequence, A337947, and A337974 partition the positive integers.

%H Peter Kagey, <a href="/A337972/b337972.txt">Table of n, a(n) for n = 1..10011</a> (first 141 rows, flattened)

%e Addition table for A337946 begins:

%e + | 1 3 7 12 22 30 47 61 85

%e -----+--------------------------------

%e 1 | 2

%e 3 | 4 6

%e 7 | 8 10 14

%e 12 | 13 15 19 24

%e 22 | 23 25 29 34 44

%e 30 | 31 33 37 42 52 60

%e 47 | 48 50 54 59 69 77 94

%e 61 | 62 64 68 73 83 91 108 122

%e 85 | 86 88 92 97 107 115 132 146 170

%Y Cf. A337659, A337946, A338014, A338031.

%Y Cf. A337973 (read by antidiagonals), A337974 (multiplication table).

%K nonn,tabl

%O 1,1

%A _Peter Kagey_, Oct 05 2020