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 A169894 Table of carryless sums i + j, i>=0, j>=0, read by antidiagonals. 2
 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 11, 11, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 12, 12, 12, 13, 13, 13, 13, 3, 3 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 LINKS EXAMPLE Table begins: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 11, 12, 13, 14, 15, 16 ... 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 12, 13, 14, 15, 16, 17 ... 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 13, 14, 15, 16, 17, 18 ... 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 14, 15, 16, 17, 18, 19 ... ... MAPLE A169894 := proc(a, b)     local adigs, bdigs, cdigs ;     adigs := convert(a, base, 10) ;     bdigs := convert(b, base, 10) ;     len := max(nops(adigs), nops(bdigs)) ;     adigs := [op(adigs), seq(0, d=1..len-nops(adigs))] ;     bdigs := [op(bdigs), seq(0, d=1..len-nops(bdigs))] ;     cdigs := [] ;     for d from 1 to len do         cdigs := [op(cdigs), A010879(op(d, adigs)+op(d, bdigs))] ;     end do:     add(op(d, cdigs)*10^(d-1), d=1..len) ; end proc: # R. J. Mathar, Jul 12 2013 CROSSREFS Cf. A004520 (diagonal). Sequence in context: A214972 A225687 A083291 * A003056 A117707 A163352 Adjacent sequences:  A169891 A169892 A169893 * A169895 A169896 A169897 KEYWORD nonn,base,tabl AUTHOR David Applegate, Marc LeBrun and N. J. A. Sloane, Jul 06 2010 STATUS approved

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Last modified May 17 00:26 EDT 2022. Contains 353724 sequences. (Running on oeis4.)