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Search: id:A011972
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A011972 Sequence formed by reading rows of triangle defined in A011971. +0
3
1, 2, 3, 5, 7, 10, 15, 20, 27, 37, 52, 67, 87, 114, 151, 203, 255, 322, 409, 523, 674, 877, 1080, 1335, 1657, 2066, 2589, 3263, 4140, 5017, 6097, 7432, 9089, 11155, 13744, 17007, 21147, 25287, 30304, 36401, 43833, 52922, 64077, 77821, 94828 (list; table; graph; listen)
OFFSET

0,2

CROSSREFS

Sequence in context: A082531 A092021 A022475 this_sequence A160571 A076972 A003410

Adjacent sequences: A011969 A011970 A011971 this_sequence A011973 A011974 A011975

KEYWORD

nonn,easy,tabl

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com) and J. H. Conway (conway(AT)math.princeton.edu)

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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