This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A380202 #13 Aug 08 2025 12:30:18 %S A380202 4,8,14,19,24,28,34,40,45,49,56,63,72,81,89,97,107,116,125,136,146, %T A380202 156,168,179,190,200,212,224,235,246,256,266,278,289,300,310,322,334, %U A380202 345,355,364,373,384,394,404,413,424,435,445,455,464,473,484,494,504,513,524,535,545,555,564,573,584,594,604,613,624,635,645 %N A380202 Number of card moves to deal n cards using the SpellUnder-Down dealing. %C A380202 In SpellUnder-Down dealing, we spell the number of the next card, putting a card under for each letter in the number, then we deal the next card. So we start with putting 3 cards under, for O-N-E, then deal, then 3 under for T-W-O, then deal, then 5 under for T-H-R-E-E, then deal. The dealing sequence is highly irregular because it depends on English spelling. The dealing pattern starts: UUUDUUUDUUUUUD. %F A380202 a(n) = A067278(n) + n. %e A380202 The dealing pattern to deal three cards is UUUDUUUDUUUUUD. It contains 14 letters, thus, a(3) = 14. %Y A380202 Cf. A005589, A006257, A067278, A225381, A321298, A378635, A380201, A380204, A380246, A380247, A380248. %K A380202 nonn,word %O A380202 1,1 %A A380202 _Tanya Khovanova_ and the MIT PRIMES STEP junior group, Jan 16 2025