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 A095226 Diagonal of the triangle A095225. 2
 1, 153, 66, 19110, 21115, 39621, 8128, 76636, 83845, 117855, 158766, 25878, 188191, 18669105, 27081120, 31868136, 1308153, 39547171, 46508190, 49795210, 50215231, 2210253, 64428276, 71706300, 72306325, 83224351, 3774378, 97601406, 98413435 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS n-th triangular number with digit string ending in n-th triangular number. By definition the n-th smallest member of A000217 which has the same least significant decimal digits as A000217(n). - R. J. Mathar, Aug 03 2007 LINKS Table of n, a(n) for n=1..29. EXAMPLE 1 3 153 6 36 66 10 210 24310 88410 ... Separating the triangular numbers for visualization with a bar, the sequence is 1, 15|3, 6|6, 191|10, 211|15, 396|21, 81|28, 766|36,... MAPLE A000217 := proc(n) n*(n+1)/2 ; end: A095225 := proc(nrow) local a, i, dlen; i := nrow ; a := [A000217(i)] ; dlen := ilog10(a[1])+1 ; while nops(a) < nrow do i := i+1 ; if A000217(i) mod 10^dlen = a[1] then a := [op(a), A000217(i)] ; fi ; od ; RETURN(a) ; end: A095226 := proc(n) op(-1, A095225(n)) ; end: seq(op(A095226(n)), n=1..80) ; # R. J. Mathar, Aug 03 2007 CROSSREFS Cf. A095225. Sequence in context: A099117 A109778 A156740 * A346630 A165340 A183985 Adjacent sequences: A095223 A095224 A095225 * A095227 A095228 A095229 KEYWORD nonn AUTHOR Amarnath Murthy, Jun 10 2004 EXTENSIONS Corrected and extended by R. J. Mathar, Aug 03 2007 STATUS approved

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Last modified May 30 13:17 EDT 2023. Contains 363050 sequences. (Running on oeis4.)