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 A079826 Consider the triangle shown below; sequence contains the concatenation of numbers read at a 45-degree angle upwards with horizontal beginning with the first term of a row. 3
 1, 3, 42, 105, 1196, 21128, 2220137, 36231914, 3735241815, 5538342517, 565439332616, 785753403227, 79775852413128, 105807659514230, 106104817560504329, 1361071038274614944 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS 1 3 2 4 5 6 10 9 8 7 11 12 13 14 15 21 20 19 18 17 16 22 23 24 25 26 27 28 36 35 34 33 32 31 30 29 37 38 39 40 41 42 43 44 45 55 54 53 52 51 50 49 48 47 46 56 57 58 59 60 61 62 63 64 65 66 LINKS Table of n, a(n) for n=1..16. MAPLE read("transforms") ; A079826 := proc(n) local L, k; L := [] ; for k from 1 to (n+1)/2 do L := [op(L), A056011(n-k+1, k)] ; end do: digcatL(L) ; end proc: # R. J. Mathar, Sep 05 2012 CROSSREFS Cf. A079825, A056011. Sequence in context: A249046 A237661 A116006 * A112291 A063040 A365594 Adjacent sequences: A079823 A079824 A079825 * A079827 A079828 A079829 KEYWORD base,easy,nonn AUTHOR Amarnath Murthy, Feb 11 2003 EXTENSIONS More terms from Jonathan R. Love (japanada11(AT)yahoo.ca), Mar 08 2007 Corrected by Kevin Ryde, Aug 23 2012 STATUS approved

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Last modified May 27 02:41 EDT 2024. Contains 372847 sequences. (Running on oeis4.)